ICB & PP are always fun games to play. If I had the room, I'd have one.
That said, it would be great if the new version had an interchangeable game board design, so any new game they came out with is just a matter of buying that new playfield (complete with a small, single plug in logic board on the back of the playfield that runs the game), taking the old game playfield out and swapping in the new one.
Be it PP, that beautiful Hole in 1 golf game Cait001 posted up, or any other theme they came out with, you just swap out the playfield, plug into the new logic board for that game (installed on the backside of every playfield) and you're now playing a completely new game. It'd be a great way to give it endless lastability. Mho anyway.