Atari can barely afford a full-cost sequel. Being developed by Assault Heroes creator Wanako (now named Behavior Studios), the four-player (online and couch co-op) top-down action game will not feature any voice work by the original Ghostbusters like Bill Murray and Dan Aykroyd. It's still unclear whether their characters even appear, or if they've been replaced by a new team of specter hunters.
Sanctum of Slime, to be released in the Spring of 2011 on XBLA, PSN and PC, will have players taking the role of "the rookie," who was introduced in the 2009 game. We don't have more details beyond what little information and screens were given to USA Today, so let's just cross our streams and hope for the best.