Nope.
And I don't think it's a cash grab, either.
I mean, when wotc caught D&D, they had to put out a new edition, to actually start fresh with the franchise, and kill off the TSR taint, as it were.
It's been a good while now, and I think they've learned a lot. They've tested out some great ideas lately, and now, they're going to put out a 4th edition. Learning from their mistakes, and all that.
As for battling WoW, nah. That's what viruses are for.