When you tie that last one to a recent Blomkamp-directed viral video released through Wired, it certainly seems like it's 'Elysium', which, in the dictionary, is a term from Greek mythology that talks of "the place at the ends of the earth to which certain favored heroes were conveyed by the gods after death." In noun form, it's "a place or state of perfect happiness." Do these definitions have anything to do with the plot? Maybe, maybe not, but hopefully we'll get a bit more of a taste in the coming weeks.
For Foster, 'Elysium' marks her first return to science fiction since 1997's 'Contact' (we're counting 'Nim's Island' as strictly fantasy), so fans of that film should be stoked to see Foster returning to a genre that definitely favors her style of acting. It's also nice to see a fantastic actress like Foster taking on more roles as of late. You'll next see her in 'The Beaver' (which she also directed), as well as Roman Polanski's 'God of Carnage' in 2012.
Since 'Elysium' hasn't been shopped to a studio yet (remember, Blomkamp is producing it independently of a studio in order to retain full creative control), we have no release date.