Save your money on this over priced dlc.
But on to the review I got to play this so called new Ultimate Marvel vs Capcom 3 at a friends house and it pretty much the same thing as the first MvsC3 but with 12 new characters nobody really heard of or wanted, added spectator mode which should have been in the game the first time around, and extra stages, but in my opinion nothing justifying a 40 dollar price tag.
Is it worth picking up? In my opinion no why? The fighting might still be fun but the game still offers nothing new, it feels unfinished, and you know Capcom will re release it again in about 6 months just like Street Fighter.
In my opinion I find it hard to support Capcom after all the bad moves they are making lately, They are becoming as bad or even worse then EA and Activision. So please avoid game and buy something better with your money.