Sirens Season 2: What We Know So Far – Release Date, Cast, New Romance Plotlines & That One Goodbye Scene Everyone’s Dreading

Netflix’s Sirens, the dark comedy thriller created by Molly Smith Metzler, captivated audiences with its five-episode limited series that premiered on May 22, 2025. Starring Julianne Moore, Meghann Fahy, Milly Alcock, and Kevin Bacon, the show’s incisive exploration of class, power, and sisterhood, set against the opulent backdrop of Port Haven’s Cliff House, earned it a No. 1 debut and a 76% Rotten Tomatoes score. While Netflix has not officially greenlit a second season as of June 8, 2025, the series’ critical acclaim and fan demand—coupled with cast and creator enthusiasm—suggest a continuation is possible. In this speculative overview, we dive into what Sirens Season 2 might hold, including a potential release date, returning and new cast members, tantalizing romance plotlines, and the heartbreaking goodbye scene fans are already dreading.

Release Date: When Could Season 2 Arrive?

As of June 8, 2025, Netflix has not confirmed Sirens Season 2, but the show’s strong performance—16.7 million views in its first four days—makes renewal plausible. Showrunner Molly Smith Metzler told Glamour, “I could write them until the day I die. I’d never say never, but could I do them justice in another season? I’d have to think about it.” If greenlit, production timelines suggest filming could begin in mid-2026, given the cast’s busy schedules (e.g., Milly Alcock’s commitments as Supergirl in the DC Universe). Accounting for production in New York, as with Season 1, and post-production, a release could target late 2026 or early 2027, likely between September 2026 and March 2027. This aligns with Netflix’s precedent of renewing popular limited series like Beef or The Four Seasons.

The Cast: Who’s Returning and Who’s New?

Season 2 would likely retain the core ensemble while introducing fresh faces to shake up the dynamics at Cliff House. Based on Season 1’s conclusion and speculative arcs, here’s the expected cast:

Milly Alcock as Simone DeWitt: Simone, now the new Mrs. Kell, anchors the story as she navigates her precarious power. Alcock told Town & Country, “I would love to explore a season two,” despite noting the challenge of continuing after the sisters’ emotional goodbye.

Meghann Fahy as Devon DeWitt: Devon’s return to Buffalo to care for their ailing father, Bruce, marked her Season 1 arc, but a new crisis could pull her back to Port Haven. Fahy expressed enthusiasm, saying, “Devon is one of my favorite characters I’ve ever played… I would never say no to coming back.”

Julianne Moore as Michaela Kell: Ousted from Cliff House, Michaela’s fate remains uncertain. Her speculated disappearance could see Moore appear in flashbacks or limited scenes, leveraging her “weaponized vulnerability” to haunt the narrative.

Kevin Bacon as Peter Kell: Peter’s decision to marry Simone sets up a complex dynamic. Bacon’s ability to blend charm and menace would drive a potential arc of loyalty or betrayal.

Glenn Howerton as Ethan Corbin III: Surviving his Season 1 cliff fall, Ethan’s return as a vengeful figure would capitalize on Howerton’s intense performance.

Bill Camp as Bruce DeWitt: Bruce’s dementia and troubled past could anchor Devon’s emotional journey, with Camp delivering another poignant performance.

Supporting Cast: Felix Solis (Jose), Britne Oldford (Missy), Lauren Weedman (Patrice), and “The Fates” (Jenn Lyon, Erin Neufer, Emily Borromeo) could return, with expanded roles for the staff, possibly as allies or conspirators in a mystery surrounding Michaela.

New characters might include a detective (e.g., Zoe Saldaña) investigating Michaela’s disappearance, adding grit to the ensemble, or a journalist (e.g., Timothée Chalamet) uncovering Port Haven’s secrets, amplifying the show’s class-warfare themes. These additions would refresh the dynamic while maintaining the focus on the core trio of Simone, Devon, and Michaela.

New Romance Plotlines: Love Amidst Chaos

Season 1 featured simmering romantic tensions, from Simone’s fling with Ethan to Peter’s shocking kiss with Simone, which upended his marriage to Michaela. Season 2 could introduce new romances to deepen the drama:

Simone and Peter’s Volatile Marriage: As the new Mrs. Kell, Simone’s relationship with Peter (Kevin Bacon) would be central. Their union, born from a power grab, could fracture under mistrust, especially if Peter’s ledger—hinted at in our speculative trailer analysis—reveals hidden agendas. A romantic betrayal, perhaps Peter reconnecting with his estranged children from his first marriage, could test Simone’s control.

Devon’s New Love Interest: Devon’s Season 1 flirtation with a yacht captain (Josh Segarra’s Ray) suggested a spark, but she chose duty over romance. Season 2 could see Devon, now with “more self-respect,” pursue a new romance, perhaps with the detective investigating Michaela’s disappearance. This would contrast her grounded pragmatism with Port Haven’s seductive allure, echoing Season 1’s themes of outrunning one’s past.

Ethan’s Manipulative Charm: Ethan’s return could ignite a new romantic subplot, perhaps seducing a staff member like Missy to undermine Simone. His Season 1 proposal to Simone, though rejected, showed his impulsive intensity, which could resurface as a dangerous obsession.

Michaela’s Shadowy Past: If Michaela returns, flashbacks could reveal a past romance tied to her wildlife preservation work, perhaps with a mysterious figure who resurfaces to complicate the present. This would deepen her siren-like mystique, blending romance with menace.

These plotlines would align with Metzler’s description of Sirens as “operatic” and “sexy,” weaving love into the show’s dark comedy and class critique.

That One Goodbye Scene Everyone’s Dreading

Season 1 ended with a gut-wrenching goodbye between Simone and Devon, as Simone chose power at Cliff House over returning to Buffalo with her sister. Devon, accepting Simone’s decision, returned to care for their father, Bruce, in a tearful farewell that People described as a testament to “the bonds of sisterhood.” Fans are dreading a potential Season 2 goodbye that could permanently fracture the DeWitt sisters’ relationship, especially given Alcock’s comment that their arc ended at “such a sad point.”

Imagine this scene: midway through Season 2, Devon returns to Port Haven to confront Simone about Michaela’s disappearance, suspecting her sister’s involvement. In a rain-soaked confrontation on the cliffs, Simone, now fully immersed in her role as Mrs. Kell, rejects Devon’s pleas to leave, declaring, “This is my home now—you’ll never understand.” Devon, heartbroken, realizes Simone has become the “siren” she feared, echoing Michaela’s manipulative allure. The sisters part ways, with Devon walking away as Simone stands alone, mirroring the Season 1 finale’s haunting vista. This moment would devastate fans, as the sisters’ bond—already strained by trauma and class divides—faces a seemingly irreparable break, underscored by the show’s Greek mythology framing of sirens as lonely, misunderstood figures.

Plot Speculation: What’s Next for Port Haven?

Season 2 could build on Season 1’s cliffhanger, where Simone claimed Cliff House and Michaela was exiled. A central mystery—such as Michaela’s disappearance—could drive the narrative, with Devon investigating while Simone consolidates power. Ethan’s return as a vengeful antagonist could threaten Simone’s marriage and expose Peter’s secrets. The Fates, the Cliff House staff, might play a larger role, perhaps revealing a cult-like loyalty to Michaela that complicates the mystery. The show’s coastal gothic vibe, praised by Vulture, could intensify with stormy visuals and supernatural hints, like cryptic siren symbols or visions of Michaela. Themes of legacy, betrayal, and redemption would persist, with Simone grappling with the cost of power and Devon finding strength in her roots.

Will Season 2 Happen?

While Sirens was billed as a limited series, its success and fan demand mirror other Netflix shows like Your Honor that earned renewals. Metzler’s openness and the cast’s enthusiasm—Fahy told Variety, “I would love to know what happens to Michaela”—suggest potential. However, challenges include aligning the A-list cast’s schedules and crafting a story that honors the play Elemeno Pea’s contained arc. Netflix’s decision will likely hinge on viewership and cost, with Season 1’s single-location setting keeping expenses manageable. For updates, fans should check Netflix Tudum or follow Metzler’s interviews.

Conclusion: The Siren’s Call Continues

Sirens Season 2, if realized, promises a thrilling continuation of power plays, romance, and sisterly strife. With a potential late 2026 or early 2027 release, a stellar returning cast, new romantic entanglements, and a dreaded goodbye scene, the show could deepen its exploration of women, wealth, and mythology. As fans await confirmation, the allure of Cliff House remains undeniable, pulling us back to Port Haven’s murky waters.