I'd honestly bet money on the next "Nintendo console" basically using the same mobile CPU/GPU components the handheld does (read: cell phone components). Just perhaps overclocked with a maybe a doubling of the cores or something.
This would actually be smart too, because Nintendo will be able to get a cheaper price on their chips this way, they'll be able to order in much larger quantities. One of the reasons the Wii U is probably killing them on cost is they can't get mass production up on it, so they can't get the components at a lower cost.







