The game is still in development, and still has the Duke Nukem brand.
Duke Nukem: Critical Mass, also known as Extraction Point: Alien Shootout, is still set for a Nintendo DS release. The game was original going to be known as Duke Nukem Trilogy, a series of three original new games for release on Nintendo DS and Sony PSP.
At one point, the game was rumored to have been retooled as a non-Duke Nukem shooter titled Extraction Point: Alien Shootout, but Apogee posted via Twitter earlier this week that the game was indeed titled Duke Nukem: Critical Mass, and was headed to Europe on April 8, 2011. In another tweet, Apogee confirmed that the license for the Duke Nukem franchise had never been revoked.
Joystiq reports that the game is set for a North American release in May.