I expect that we will have to wait for one of the next generation of games consoles to get a peek - one of them is bound to stay with PowerPC.
The Wii 2/Project Café is due to be announced at this year's E3, which is at the beginning of June, so we've got less than a month to find out about Nintendo's next-gen plans. I've heard rumours that they're sticking with PPC:
01net also claims to know some of the technical specifications of the new console (translation from Develop): "CPU is custom IBM PowerPC with three cores, GPU should be an ATI from the R700 family, with a shader unit at version 4.1. RAM should be at least 512 MB."
https://secure.wikimedia.org/wikipedia/en/wiki/Project_Café#April_2011Won't be long before we find out if this is accurate.
