I always thought that the peak is this year. Nintendo is peaking now until Pokemon. After the first months of Pokemon sales, the peak is gone. Nintendo usually peaks earlier and NSW has all the attributes to an early "peaker" device.
There's a chance that after Pokemon, Nintendo will release number 2 of all its first party titles again, then third party will move away from them making next-gen games for the home consoles, then they will get to draughts until next system.
When PS4 will hit 100m consoles sold: Before Christmas 2019
There were three ravens sat on a tree / They were as blacke as they might be / The one of them said to his mate, Where shall we our breakfast take?