It sounds like brothers Jeremy and Julian Soule will bring music to 3D Realms' Duke Nukem Forever. 1UP believes so, and lays out its case with two intertwining pieces of evidence:
1. 3D Realms developer Raphael Van Lierop discussed in his blog about a recent visit from Julian Soule.
2. In an Insiders-only interview with IGN, Jeremy left one hint about his secretive upcoming project: "When it's done!!!" Okay, that alone would be enough of a confirmation since Duke Nukem Forever, still one of the most ironic titles in the history of entertainment, has kept to a release date of "when it's done."
Add to that previous relations when Jeremy Soule composed the soundtrack for 3D realms' Prey. Is Duke Nukem Forever really in full production? Minuscule screenshot notwithstanding, we'll have to see to believe it.