[2020] Several doubts about the Playstation 5 version

I searched anywhere, but I didn't find much information about it.

How will the Playstation 5 version run?

Will it run in Ultra PC settings or will it have 4K resolution or will it support 120fps like Monster Boy or Dirt 5? (Temtem is not such a heavy game, I think it would be very interesting that it is one of the few games that run at 120fps on Playstation 5.)

Will have support for USB Keyboard like some games for PS4 like Paladins (It would be very useful since the game is an MMO), will it use DualSense in any way? (it would be interesting to have Haptic Feedback at some points in the game)

And most importantly, will it have crossave / crossprogression or is it still something uncertain?