Both, most likely.
I never saw that the Halo generation of people on Xbox would be the ones buying Fable, Morrowind, and KOTOR, but they were.
Really though, I think the fact is that Halo 3 will have "mass appeal", and not just cater to the crazies (ie, the hardcore). You don't get to 6.5m unit sales on the backs of hardcore gamers alone. Because of this, I think that games like Blue Dragon might get a boost from Halo3. Not as much as FPS games, but a boost nontheless.
However, you have alot of cross-polination between genres, and games. Blue Dragon was helped out by family titles like Viva Pinata, and Lego Star Wars to a degree, and then you have Madden cross-polinating most genres, in the fact that Madden isn't a hardcore game, and mid-road game.
So I think H3 week, we'll see software see a general boost of 10%, and then have smaller drops, to atleast boost software sales for each game by a bit.
Back from the dead, I'm afraid.
