I would enjoy seeing twitch play a 2p fighting game, like Injustice, Gods Among Us, with a slight twist: there should be two streams, each controlling one player. I doubt I'd take place, but I would find the result absolutely fascinating.
For me, the most impressive thing out of CES this year was Project Christine. I'm really excited about the idea of modular PCs and (hopefully) the possibility of taking advantage of distributed system functionality (particularly the potential speedup parallel processing on this type of scale can achieve) in a personal computer. Fingers crossed!