I think your Maschine 3 & script move looks pretty solid chief. My gas would go in that direction at the mo with used prices of Maschine in the “pretty decent” territory.
I have to say the big thing about this for me is replaceable components. It was well beyond time companies allowed you to actually keep what you paid for, and this looks like a very positive step in that direction. I know a lot of people kept their push 1 and those are fairly old now. So buying a device that allows upgrades makes this look like a machine you’ll assess in decades not years.
It is an interesting proposition, although one of the main issues with Push 2 was more quality of life based, where people used to say that despite all the toys you get in a Push, they would end up using mouse & keys anyway. So if there are any workflow enhancements in that department (I spy a proper jog wheel) then that could make it interesting.