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Just Samantha now a pairing between Stefano and Marlena's crazy sister could be fun for a future What If? storyline. Also I like the idea of Sami being Stefano & Samantha Evans' daughter rather than Marlena & Roman's.
As for the permise of this thread. I've already thought up a name for the alternate Sami Brady - Santina Dimera. Stefano names his surrogate daughter after his beloved father, and develops a soft spot for her (as he has all his female children). Now, I'm thinking Stefano picks the name Rodrigo Dimera for the alternate Eric Brady. Rodrigo being Stefano's favorite uncle in this universe. The reason nobody looks for the twins is because Stefano makes it seem that they died, fleeing the Island compound, during a boat explosion he himself escaping in a seperate way (say on a helicopter, secretly with the twins).
When Santina & Rodrigo come to Salem 18-20 years later, Stefano passes them off as his children by a woman who he had a fling with from Europe who tragically died shortly after they were born. Now I'm not yet sure how the truth should eventually come out if I write the full story, but the twins will be in town two or maybe three years. Of course they will be rubbing everyone, including the Bradys & Hortons, the wrong way before the reveal.
Santina's life pretty much follows a similar path, she becomes obsessed with Austin Roberts, who is married to her unknown half sister Carrie by now, and she enlists the help of Austin's brother Lucas who doesn't so much want Carrie in this timeline but rather Santina herself. Of course Santina sees him as nothing but her Bart style flunky in this universe, kind of like a younger Vivian & Ivan only a tad darker.
Now I'm not fully sure who to pair Rodrigo. I'm considering that Nicole sets her sights on him, once again mirroring the actual universe to a certain degree, when she fails to seduce Victor wanting his money & power more than anything else. Rodrigo however is far more interested in Chloe Lane, due to her singing voice being an opera fan like Stefano, which brings him into major conflict with his unknown half step brother Brady as Rodrigo ruthlessly pursues.