Soundwave on 03 February 2014
I think it will be even sooner than that. Fall 2015 for the next Nintendo handheld which will contain the new architecture and the same games as any future console (I think the console itself will be more akin to a dock ... almost like an accessory).
3DS is already fading, Nintendo won't go until 2016 without something to spike their business and while all that QoL talk is nice, that's a new business field for them and it could take them years to get established there.
