Releasing the new consoles later would mean additional AAAs last gen which in turn would have the same effect on next gen..nothing would change in that respect.

Wii U should have released either 1-2 years earlier or 1 year later.

The solution for consoles would be a huge improvement of cloud technology for gaming. PSNow is just the beginning. The days of a physical console are going to end and clould will shine in the next years, who knows the next decade.

Actually it would be better if both WiiU and X1 released in 2012.

360 was 7 years old at the time so it wouldn't have been considered "abandoning" so soon and you get that lovely head start. That is IMO Don Mattricks worst mistake.

cross gen games donsn't seem to hurt ps4 that much

since publishers seem content making every game a cross generation game already..

...they should just release marginally new hardware every 2 years.

They need to consider other things though like the slowing sales of their current gen consoles and what the competition is gonna do.

I'm not sure if I understand the OP, but I'd say that the Wii U should have released in 2011 with a cross-gen Skyward Sword.

new tech.
nanotubes transistors, new ibm integrated memory!
by 2020 it may be avaliable.

If the Wii U released a year earlier then the technology inside of it would cost a years worth more making them either lose more money on every console sold (which they've already admitted to sabataging the original wii sales in order to wait until it was profitable) or have a higher price than $300-350, which is already too high for most consumers.