The Brief Long History of DNF- Post-3D Realms Edition on Shacknews recaps the known history of development of Duke Nukem Forever. They also talk with Take-Two about their DNF publishing deal, getting a clarification that while Take Two has no ownership of any Duke IP, they have exclusive publishing rights (not just a right of first-refusal), which will never expire to Duke Nukem Forever, even if it seems unlikely the game will actually ever be completed.