Guys, I was joking (well..... sort of....).
But think about it for a second.
3.0 had an ingrained assumption that players are using minis and several rules are designed specifically for this. Then along comes 3.5 and it is even more tied to minis. Then along comes the minis game, and the collectible minis. Am I the only one seeing a trend here?
Now granted, I have no idea when or what form 4.0 will take, although I have made my guesses (depending on which way you do the math, either 2006 or 2008, though I lean more towards 2006). I have also "guessed" that it would not be OGL. (Note: I have explained my reasoning behind these two dates before, so I won't repreat it)
Now, in take the "trend" and add that in, and you get D&D4.0 which is a lot more like Warhammer, only with collectible minis (shudder).
And this doesn't even incorporate the the Hasbro mentality that "toys are good" and that "minis = toys", along with "collectibles are good" and "minis are collectible" (as Whizkids have proven). To me, personally, that only strengthens the idea. Nor does it consider the fact that marketing loves to leverage products off one another (marketing people are the true evil of society, just ask ANY developer who has had to deal with providing something that marketing has promised customers - something that was never in the original design specs)
So, even though my post above was in jest, it is still a possibility (and one I consider a scary possibility)