We are not getting new GPus in this round, neither from AMD or nVidia. That would require a shrink (to 22nm) that has been delayed and screwed up both of them. These new cards are not rebrand either, there are refresh based on the "old" architecture.

Therefore, the flexibility of "old" architecture is going to very important in the fight between upcoming high-end cards (Cayman vs GTX 580, or whatever they call then), in my opinion.