According to retailer GameStop, Resident Evil's Jill and Marvel's Shuma-Gorath are bundled as DLC characters for Marvel vs Capcom 3's Collector's Edition. The characters will be widely available to those who don't purchase the Collector's Edition four weeks after launch.
Priced at $US69.99, the Marvel vs Capcom Collector's Edition goes on sale next year when the game hits retail.
Marvel vs. Capcom 3: Fate of Two Worlds Collector's Edition - with Bonus! [GameStop - Thanks Jonathan!]