For those wondering where the extra power/cores will go, look no further than the new Sony/Microsoft consoles for inspiration. Starting with Crysis 3 there is a trend for using more than 4 cores. 4 will be the minimum with an additional 2 for the OS and 2 for AI/Physics = 8 Cores/16 threads. We can see where this is heading for us enthusiasts, more $$$ to get the best experience. 4 Cores will still provide a good experience by default but it will no longer provide the best, 8 Cores will be the benchmark, around 7-8 months from now.
An interesting prediction. I'm not sure I agree with the time scale, but I do with the general gist of it. There's little doubt that console shenanigans will have a significant impact on PC gaming. If Intel don't release higher core counts into the mainstream soon then AMD will start looking allot more attractive for gamer's rigs.