Push 2 is definitely overdue an update by now - I tried one over a year ago and bounced off the pixelated screen pretty hard - at the very least they could update that to something crisper and more modern.
I found the workflow a bit clunky too tbh - I kind of ended up just wanting to use my mouse instead.
And for live performance there are better options.
Something that combines the best elements of the Push, the APC 40 and possibly even things like the Maschine could end up with something very powerful.
Something with Live in it is probably too far fetched as it would then need to be a powerful computer in addition to a controller - but something more integrated would be good and would explain the time investment.