I`d love to see him 1 v 1 with the rock at wm29 and win the belt to get that push he could use. WWE is in dire need of main eventers who can draw besides the same 2 guys. Maybe screw cena out of the royal rumble match as well, as a heel move so he does not get a title shot at wm so he alone fights rock like he should. It`s punks time to take over. Maybe try and be a super heel and try and screw taker in his streak match (but fail).
Then fight austin at wm30 and win and cement his legacy after beating both the rock and stone cold.
Another matchup I would love to see is in the future... sandow vs punk. both of these guys can go obviously and sandow is pure comedy gold on the mic and we all know cm punk can have his mic moments. The buildup could be awesome as the match itself.
Punk vs barrett would not be too bad either, but I`m not too sold on his new finisher.
maybe a triple threat between punk-bryan-ziggler the 3 of the most talented guys on the roster today, it is guaranteed good match