You think there is a "release new console button" at MS or nintendo?

Nope. 2016 would be the earliest we could see a next gen console.

Absolutely yes in 2016

Console market needs generation-long stability MORE than HW power. A generation too short can't recoup the investments and it can build neither a large user base nor a wide game library.
Loss of platform stability in time, lower profitability both for HW and SW, all to have HW that still can be beaten by mid-range PCs within a year, games more expensive and with lower profit margin, due to royalties to platform owner and to less time available to master programming on a platform, consoles would become sitting ducks and PCs, mobiles and possibly other platforms would wipe them away forever.

no, we probably won't see a Nintendo console - which will be the earliest - until 2017.

Planning, designing, manufacturing and releasing a consoles takes way too long for this to be possible. Nintendo could cut the gen short and release a successor in late 2016, but that's the earliest I can see it happening.

My prediction:

Holiday 2015 - Slim Wii U with no Gamepad (bundled with Zelda).

However, I consider this a hardware refresh, and not a new console.

Slim PS4 and XBOne in 2017. There may also be some internal redesigns in 2016 to use cheaper hardware and a corresponding price cut, but probably nothing major. New consoles from Sony / MS will probably come 2019 / 2020.

Haha nope, the big 3 have already made their beds and will just have to wait for another 5-6yrs before releasing another console.

In that time MS and Nintendo can still deliver. Doesn't mean only 1 can dominate.

No chance. 2017 at the earliest

They did that in the past, why should they react in panic now?