Of course there will. GTA makes all of the money. And it'll hit PC unless something crazy happens. And yeah, I'm always excited for the next GTA. It'll be a while, though, since Rockstar has the good sense to take their time and 5 has a longer tail on it than its predecessors.
Alright, just watched it. On one hand, I enjoyed the hell out of it. On the other, most of the jokes fell flat, and it's easily the worst of the Rogen/Franco movies. It's the rare comedy that works despite not actually being very funny. (I should add a big, flashing "in my opinion", since people are so touchy about this movie)
In the end, though, I'm glad I saw it.
The funniest thing about it is that would have come and gone with only slightly more attention than any other lukewarm comedy if G.O.P hadn't inadvertently given it the ol' Streisand Effect boost.