DM235 on 08 September 2014
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.
