I think the CPUs and other components must be even more power conserving. For example, we should be able to set individual components to turn off when not needed.
Example is while d'loading in the night, the GPU, mouse, keyboard, DVD drives, webcams, etc. are not used at all. So they should be turned off completely to save power. Also, the CPUs must take C 'n Q a bit further and should be able to decrease the clockspeed to even say..200MHz along with the RAM too if possible.