Morbius' backstory follows a classic Spider-Man villain formula: Dr. Morbius is a scientist with a rare blood disease who tries to cure himself, to disastrous results. In fact, Morbius nearly made his big-screen debut before Spider-Man.
That, I suspect, is why we're going to end up with a whole movie about Morbius, the Living Vampire. Indeed, the tragic aspects of Morbius's origin story quickly led to him being spotlighted in solo stories in Marvel's Adventure into Fear, later occasionally popping back up in the Spider-Man titles as a rival. He gained super strength and is absolutely willing to drink blood for the sake of science. Eventually, he's turned into an anti-hero of his own right, similar to Venom.
Furthermore, Sony has not mentioned how they will be reinventing the character of Morbius or if they will sticking to canon material. As THR reports, the Spider-Man spin-off is indeed in the works, but its first script hails from writers Burk Sharpless and Matt Sazama. Sharpless and Sazama themselves dabbled in the supernatural genre, penning Universal's Dracula Untold, another disappointing building block for a troubled cinematic universe.
As Hollywood continues to push all of its chips into the superhero movie pot, it gets harder to come up with new superheroes audiences might actually want to watch a movie about. Instead, Sony is plowing forward with the "Sony Marvel Universe", a bizarre-sounding plan for an interconnected series of movies built around Spider-Man characters without, you know, Spider-Man. However, when The Amazing Spider-Man 2 didn't meet expectations, Sony struck a deal with Marvel to bring Peter Parker into the Marvel Cinematic Universe.
Morbius joins Venom and Silver & Sable, the Black Cat and Silver Sable-centric spin-off, in Sony's cabal of increasingly unusual superhero spin-offs. As the recent implosion of the Dark Universe demonstrated, fans won't line up to see a film just because it connects with other movies.