Dave Meltzer is reporting that Ring Of Honor is hoping to book CM Punk, presumably for their show at Madison Square Garden. This seems like a long shot but feelers have been sent to him.
Last month, shortly after the jury ruled in his favor during the trial against Dr. Chris Amann, Punk told Ariel Helwani that he has never received a concrete offer to return to pro wrestling and he indicated that he might do something if it's fun and worthwhile to him. That had everyone thinking that he would be open to wrestling again. Then, in a different interview, he seemingly shut the door on wrestling again.
If there's anyone that Punk would listen to it might be Matt Jackson because he is one of the few people in wrestling that Punk stays in contact with.
Again, this is a long shot but I would think that headlining Madison Square Garden against WWE would sound intriguing to Punk. The G1 Supercard show being presented by ROH and New Japan Pro Wrestling will run at the same time as NXT Takeover on the night before WrestleMania.