IGN compiled in an article what is known, what is not known and what they want from Duke Nukem Forever. Come get some:
"Is there really any point in joking anymore about how long this game has taken? It's been well over a decade now, and we're still as close to playing this furtive, elusive title as we ever have been. In fact, there have been many times when we've been a heck of a lot closer to seeing the final, definitive Duke Nukem Forever in our hands. That's the purpose of this feature – to take a stroll down the memory banks and look at what was. And there was a lot. With the weight of a decade's worth of expectations resting on 3D Realms' shoulders, now more than ever it's critical that the team delivers on its promises."