Starcraft: Ghost has endured multiple delays -- the game was originally set to come out late 2003 -- and even a change of developers, and now the game could possibly not come out at all.

Blizzard has announced it is refocusing its plans on the next generation of consoles, and this means putting an old current-gen title like Ghost on hold. They say they're reevaluating the game's potential as a next-gen title, so it may still show up for the PS3 or 360, but undoubtedly only after even more delays. The Gamecube version of Ghost was cancelled back when Swinging Ape took over development, but the fate of the Xbox and PS2 versions is still unknown. Blizzard may simply decide it's not worth the time to finish them, either because they want to focus solely on the next generation or because by the time they'd be done, the PS2 and Xbox would simply be too damned old.

Source: IGN