An industry insider friend told me that there's a working version of Duke Nukem D-Day that's been found, a never finished game from around 2007-08 time frame. I expect video footage will be posted soon by whomever has it. This was a project Apogee had partnered with N-Space to make, who also made Time to Kill and Land of the Babes. The game's story was that Duke would go back in time to WW2 and play a pivotal role is many well known events, like the sinking of the Bismarck, and he'd be part of the D-Day invasion taking out numerous key Nazi strongholds. I think he also found Hitler's bunker and finished off the dictator, making it look like suicide.