It looks like there may be another Hitman game in development, because publisher Square Enix has filed a trademark for something titled Hitman: Sniper Challenge. Fans are speculating that it may be an iOS game, or a downloadable mission that ties-in to the upcoming PS3 and 360 game, Hitman: Absolution. No official details have been revealed.
Hitman: Absolution will assassinate the PS3 and 360 later this year. Square Enix recently announced Hitman: Damnation, a new book that chronicles the exploits of Agent 47.