Opinion: As earlier NX releases, as bigger are the chances it wont be what your waiting for.

[AZWification]

CaptainExplosion said:
And another reason they can't release it this year; When the PS5 and Xbox Whatever come out 2 years later, Nintendo's gonna kill the NX right away for a new system.

Again, DREAMCAST.

I don't see why the PS4 would have a 5 year lifecycle. A 2020 release date seems more likely.