I'm sick to death of portables with short battery life and more than happy with the Vita performance level so would be happy with a Vita phone that takes 2 micro sds, has a gamepad cradle that can be used with or without the vita phone attached and has a built in secondary battery. Has a tv dock and can use ds4's.

I'd like them to use the very latest fabrication process and a decent battery so can play for 7 hours minimum. The dock should be something like below so the screen is still shown for messages etc even when used for tv output. It should support android too with the cpu's going into a turbo mode for android for competitive phone performance. I'd like the game controller to be smaller than below and fold up for easy portability

everyone loved the Vita... Until Sony announced memory card prices. Hype flew out the window after that. I'd say, don't have high priced memory cards for no reason. It also needs to be a phone, or have a model with and without 4G.

3G on vita when 4G was just rolling out wasn't the best of ideas either.

With the Switch, I no longer have much desire for a Sony portable...but I guess I'd be interested in something that could run PS3 games natively. Or maybe PS4 games on lower graphical settings. I imagine something like that is still a few years away at best.

Backwards compatibility and normal memory cards

Oh God no, leave that to Nintendo, this is coming from a Sony Pony

HA!