You lost me when you said "rumoured". Rumoured as in, the WiiU was supposed to have a Power7 CPU under its hood? Don't be that guy. Rumours are rumours, I want to see facts. Also, let's not call Valve's invention a console - it's a downsized PC. It runs PC games.
Again, I never said that Microsoft and Sony won't release stronger hardware, they very well may, but everything comes at a price. Sony shouldn't risk another "$599" and Microsoft claims to be working on making the new XBox more accessible by dividing it into two SKU's rather than ramping up the price expotentially with extremely strong hardware. It's going to be strong, but not "contemporary High-End PC" strong.