My personal list so far; it's a bit of an amalgamation of who I'd predict and who I'd personally want.
Honestly it's really hard to predict anything for this game. Conventional wisdom says there's probably going to be less characters in this game's starting roster than Marvel 3, but that makes it really hard to rationalize what characters of the obvious picks will return in order to make room for newcomers, as well as whether or not certain "groups"/franchises have to be toned down to make representation fair.
As much as I hate the thought I feel like we're only getting one Darkstalkers rep this time (if we're getting two I'm erring towards Hsien-Ko over Felicia due to Capcom seemingly wanting more of a marketable exposure and we know what the likes of ESPN think of R.Mika for one). I'm kind of flip flopping on Strider, depending on what time of the day you ask me I'd say Asura is more likely. Phoenix Wright might be assumed as the easiest pick for the chopping block in terms of vets but he's among one of Capcom's most popular ongoing franchises as of present and I think they'll want him back for that reason.
Marvel side is a bit easier to predict but I think they're gonna want to throw a bone to some of their ongoing comics as well.