Still mad that Ulitimate Marvel Vs. Capcom 3 is coming out less than a year after you paid full price for the prequel? Get over it. Your 'tude might lead you to miss out on the most crazy-crazy-crazy-all-the-time experience in fighting game history.
Heroes and Heralds mode is free, post-launch DLC that will allow you to collect cards based on other Marvel and Capcom characters, giving your fighters new properties and abilities. Unlike Street Fighter X Tekken's newly announced Gems Mode, which Capcom's Seth Killian says is "actually trying to (be) balance(d)", Heroes and Heralds mode is place where you can "just throw balance and sanity to the wind completely". With new combos, invisibility, super armor, projectile invincibility, and parries (complete with Daigo moment), I can see why he might say that.
It also sounds like Galactus will be getting a mode where you can finally play as the god-like planet eater. My question is, who will possibly be able to put up a fair fight against that dude? I'd like to say Gold Lightan or PTX, but I think we all know there is really only one right answer to that question.