TWIST
The way parameters map to the encoders on Push is great. 8 encoders are not enough, however.
Alongside Push, Ableton should offer Twist (twisting knobs, get it?). 32 nice encoders with displays showing what each is doing. Essentially like the row of encoders and the display on Push 2, but four rows of that. And some assignable buttons. And some nav buttons. Soft synth heaven.
At the same time, Racks should offer multiple pages of 8 macros per page instead of one page of 8 macros and that's it, as currently offered.