According to NP's article, the game will be undergoing a slight name change to Tatsunoko vs Capcom: Ultimate All-Stars (..really?). There's also talk that more characters and online play could potentially be added.
TvC will hit store shelves in North America before the end of the year. There's currently no details of a European release, but that could happen.
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Wii's World is not officially affiliated with Nintendo! (but they wish we were).