Vergil is ALWAYS DLC. It's like Capcom canon at this point.
Capcom can for a low budget port over a lot of Marvel 3 characters and generate some good will with the hardcores. People who want the new characters will get to eat in season 1 but season 2 SHOULD be all about the fan favorites/veterans.
Like you can't tell me that a 12 character fast release schedule of :
Capcom: Vergil, Wesker, Phoenix Wright, Amaterasu, Viewtiful Joe, Tron Bonne
Marvel: Wolverine, Magneto, Storm, Deadpool, Doom and MODOK or Phoenix
Wouldn't generate some hype especially if they can churn them out quickly, concentrate on delivering new characters after that.