Yeah I bet this gen is the shortest of any gen so far. New hardware may not be out in 4-5 years, but guarantee the rumor mill will start spinning really early this gen.
Yeah, it's honestly Microsoft and Nintendo's only chance at surviving this. Plus the hardware MS and Sony put into their respective machines just aren't very powerful. I say PS5 release in 5 years and will be equivalent to the top end video cards of today.