Too early to tell on the 3D, as for new consoles, that's also driven by the developers. More power is there, but costs for big console titles already skyrocketed with PS3/360 and its clear the main developers aren't keen on another big hike in costs due to new hardware.
Also, only the smaller hardcore cares about that kind of power. Look at the Wii's specifications and it's still outselling the PS3/360.
Try to be reasonable... its easier than you think...