You can already tell by the declining popularity of playstation in Japan that the PS5 is going to be something like the Switch.
Unless Sony doesn't care about the Japanese market anymore.
Not gonna happen. They can't make a hybrid that is a significant leap over PS4 and with AAA 3rd party games being 50-100gb (or more next-gen) they cant go with carts like Switch does.
Following in Switch's footsteps would alienate their western audience and AAA publishers which would basically be handing Microsoft a NES/PS2 level monopoly in the home console market.
When the herd loses its way, the shepard must kill the bull that leads them astray.