"Duke Nukem Forever is a 1999 game and we think that timeframe matches very well with what we have planned for the game." - George Broussard, 1998
"Trust us, Duke Nukem Forever will rock when it comes out next year." - Joe Siegler, 1999
"When it's done in 2001." - 2000 Christmas card
"DNF will come out before Unreal 2." - George Broussard, 2001
"If DNF is not out in 2001, something's very wrong." - George Broussard, 2001
"DNF will come out before Doom 3." - George Broussard, 2002
Well, that last one hasn't been disproven . . . yet . . .
. . . actually, now that I think about it, neither has the one before!