My idea for PlayStation portable, was always that their portable should just be their last gen games. Simple enough and solves pretty much all issues when it comes to compatibility, if a dev want they can make a PS4 version of their new game it would even help people that still play on PS4 get new indie and non demanding games.I hope not. Imagine having a "PlayStation", but having to check if yours can play that game or has compatibility issues. Or even worse, imagine having a "regular" PS but your games run like shit because devs have to support multiple devices.
A portable that runs base PS4 games with a 1080p OLED screen, sounds great to me, could also be used for PS5 remote play. But then they came up with that lazy PlayStation Portal abomination.
If it was exactly as I described I would pay $399 for it.