No. They'll be better for it too. They can focus all their handheld teams to make ps5 games(which they're pretty much already doing nowadays). And they only have to give free games for the ps5. This saddens me though, I loved the psp, and the ps vita is a great device hardware wise. They really nailed everything on that aspect.
Ltd predictions by the time 9th Gen comes out
Ps4:110million
Xbox one :75 million( was 65)
Wii u: 20 milliion