@Candunc Personally, and this is just personally, i save everything in sstamps, and besides, wasn't things saved on legacy PT compatible for awhile, if so, then it would be possible to just bring that back and try to make that work.
I think that the kiosk and scale:2 are very cool, but wouldn't an option in game be useful? Like Mur's mod, it has a fullscreen mode, just press F11 and it does what kiosk does.
Problem of Powder Toy graphics is not resolution but shading. The elements have no shaders and it makes them "8 bits" style. It could be nice to have shader support for elements.