Da Vinci's Demons S3 SPOILERS, SPECULATIONS & COMMENTI

According to her agent's website, Sabrina Bartlett has joined Da Vinci's Demons season 3 as Sophia D'este, a cast regular.

LEONARDO DA VINCI (Tom Riley)
Leonardo da Vinci, genius, artist, a man adept at solving the world’s mysteries, faces his toughest challenge yet upon seeing his personal inventions employed by the Ottoman invaders during the battle of Otranto. To fight those who seek to destroy everything he loves, Leo must align with old foes, repair broken friendships, discover hidden secrets, and resume a dangerous quest, knowing all the while that he is his own worst enemy.

LUCREZIA DONATI (Laura Haddock)
After playing her part in the Ottoman invasion, Lucrezia Donati spirals into dark and reckless behavior that could threaten to destroy her from the inside out. She must put the needs of her friends before her own if she is to ever absolve herself of past sins, with the hopes of aiding Leo in his quest to save Italy.

COUNT GIROLAMO RIARIO (Blake Ritson)
Riario’s trip to the New World inspired an unlikely friendship with Leonardo, but upon his return to Italy, he failed to receive forgiveness from those whose approval he seeks. At his most vulnerable, he was kidnapped by the mysterious Labyrinth, and their plans for him threaten to propel him down a dangerous path.

LORENZO DE’ MEDICI (Elliot Cowan)
The head of the Medici Bank, one of the most influential institutions in Europe, Lorenzo de’ Medici is the de facto ruler of Florence. When Lorenzo finds himself at the mercy of his enemy, he is forced to reexamine his priorities, putting the lives of those he loves, and the citizens of Florence, at risk.

CLARICE ORSINI (DE’ MEDICI) (Lara Pulver)
In the wake of her affair with Lorenzo’s duplicitous uncle, and Carlo’s subsequent thievery of the Medici fortune, Clarice Orsini sets out on a mission for vengeance. But with Carlo embroiled in the Labyrinth, her undertaking may prove to be far more dangerous than she realizes.

POPE SIXTUS IV (James Faulkner)
After fleeing Otranto, Pope Sixtus returns to Rome to discover that his incarcerated brother, the Prisoner, has mysteriously escaped. In an attempt to protect himself from both his twin and the Turks, Sixtus sees an opportunity to spread his influence around Italy... by preying on the fears of his own people.

THE PRISONER (James Faulkner)
Held captive by Pope Sixtus for years, the Prisoner has finally freed himself from his brother’s dungeon in the heart of the Vatican. The Prisoner rejects the papacy, seeking refuge in unlikely places, and putting into action long- awaited plans ...

ZOROASTER (Gregg Chillin)
Having been loyal to Leo for countless years, Zoroaster ultimately learns that blind faith in his friend is not in anyone’s best interest, and begins to push Leo to examine the consequences of his actions.

NICO MACHIAVELLI (Eros Vlahos)
Having faithfully served as Leonardo’s protégé for years, Nico Machiavelli – driven by a desire to protect Vanessa – attempts to remedy the financial issues currently plaguing Florence and learns that being a leader sometimes requires sacrificing ethics.

VANESSA (Hera Hilmar)
Having once been Leo’s primary muse, Vanessa is now the newly-anointed regent of Florence in Lorenzo and Clarice’s absence, since giving birth to the Medici heir. For the future of her son as well as her city, Vanessa must form unlikely alliances ... and ultimately make a decision that will affect both her life and the lives of her friends.

AL-RAHIM (THE TURK) (Alexander Siddig)
Once a mentor and spiritual leader to Leo, Al-Rahim comes in conflict with our hero when his efforts to spread the influence of the Sons of Mithras betray Leo’s trust. Al-Rahim must convince Leo that the ends do, in fact, justify the means, or prepare to take on Leo as an enemy to his new world order.

PIERO DA VINCI (David Schofield)
Piero da Vinci is Leonardo’s father and serves as Lorenzo de’Medici’s notary. After years of pushing away his bastard son, Piero finally has an emotional reconciliation with Leo after the reappearance of Caterina, and realizes Leo is Italy’s best hope in the fight against the Ottoman invasion.

LAURA CERETA (Simone Lahbib)
The “sister” of Cardinal Rodrigo and member of a powerful merchant family in Venice, Laura develops a close bond with Riario. A bond that is threatened upon learning that Riario may not be the man even he believes himself to be.

SOPHIA D'ESTE (Sabrina Bartlett)
Dark, mysterious, and beautiful, Sophia is the daughter of Caterina, and the sister Leonardo never knew he had. From the archaic, intellectually stifling environment of a convent, she now desires to experience all the world has to offer. She's tougher and smarter than she lets on, but her prodigious knowledge has been gained only through books – she has no life experience in the real world. Sophia is eager to live the adventurous life she's only read about, but her sheltered past keeps her vulnerable in the face of danger.

DUKE ALFONSO II, KING OF NAPLES (Kieran Bew)
A fierce military leader and passionate patriot, Alfonso will stop at nothing to protect his republic when the port city of Otranto is invaded by the Ottoman Empire, even aligning with an old enemy.

CARLO DE’ MEDICI (Ray Fearon)
After the bastard son of Cosimo steals the Florentine fortune out from under the nose of Clarice, he flees to Rome, where he seeks refuge with his brothers in the Labyrinth. It’s no secret that Carlo has it out for Leo, but the Labyrinth has plans for Da Vinci as well.

Da Vinci’s Demons Season 4 Revival Plans Confirmed Despite Starz Cancellation

Despite the show’s cancellation at Starz, David Goyer plans to revive Da Vinci’s Demons for Season 4 in a few years, per Digital Spy:

“
“There’s a possibility we could do a fourth season in a couple of years. There’s an idea that takes place 15 years later.

Say we did it four or five years later, it would be a self-contained eight-episode thing. We may still do that, as it takes place during the Bonfire of the Vanities.”

However, the writer assures fans that the show will have closure in the event that the revival gods aren’t so kind:

“
“This has closure. For the fans, it’s hard to do a good ending. You hate those shows that don’t end because they got yanked. This isn’t that. We debated whether or not this would be an end. Fans will be really satisfied with the end.”