If this list is actually true and this is the roster we're going to get, then I sincerely hope that the DLC is hype as all hell, since this is really underwhelming. This isn't to say that the roster is bad, but when we look at it as a whole, we are literally carrying over a big chunk of UMvC3 characters (which isn't bad mind you) and adding in a few characters that are... ok.
I'm just trying to figure out how Monster Hunter is going to be included into the story mode, since you can probably guess that any characters in the initial roster will be apart of the story mode. That and how we have three Guardians (two playable, but Groot playing as support for Rocket), and how Star Lord isn't playable? That either makes me feel like they have re-prioritized importance of a starting roster, or if we look at the "DLC" there is a good chance that we might see Star Lord (and maybe even Drax) take up one or two of the six supposed DLC slots.
The more I think about this list, the more it makes me feel as though this can't be real. The other big kicker is that at E3, it might not even serve as a way to debunk this or confirm the list since we can probably guess that a good chunk of characters on this list that were in the UMvC3 roster will be shown off, while at the same time, if they show off "Antman" as playable, that would just be a dead give away and doesn't really confirm much since we could guess that he was going to be included anyway.
If we do see Jedah or Monster Hunter at E3 though... Then I might just hold off for the DLC since Sigma does interest me greatly.
Most surprising is no Zero. Sigma and X is there. Zero will be the perfect addition.
Maybe DLC I suppose.
Bare in mind that when Sigma was shown off, there was the extra Tidbit mentioned of "Six All-New DLC characters." So unless if they decide to do a second season of DLC characters, chances are that we won't see Zero at all.