Sam Fisher's next outing will be called Tom Clancy's Splinter Cell: Double Agent, Ubisoft's revealed, with more details due to be unveiled soon.
It's due out on consoles and PC this coming spring, with an Xbox 360 version also in development, and it sounds like all the viral marketing-fuelled chatter about Sam going rogue is, perhaps predictably, part of a ploy to infiltrate a nasty terrorist group. Presumably while on smack.
Fisher's been banged up the slammer, as it goes, but he'll break out and that'll help him get a foothold in the underworld, which will probably suit him what with all the shadows.
Appropriately enough, there's some more information lurking in the darker corners of the Internet, and we'll have lots of our own in the very near future.