UPDATE: According to Pwinsider.com, the WWE has stopped following CM Punk on Twitter. The WWE account still follows discarded characters (like Dr. Shelby) and WWE NXT talents who have since been released.
In regards to the TMZ report, which cited that Batista was the reason Punk walked out, WWE sources have stated that Punk's decision has nothing to do with Batista personally and it was not him that caused Punk's departure. Word is that it was a collection of issues including burnout, injuries, a difference in what the company saw as a big push for Punk and what he felt was one (the proposed WM 30 match with Triple H) as well as an overall frustration with how he was perceived by the company.
ORIGINAL: According to Pwinsider.com, CM Punk has been pulled from all advertising of WWE live events going forward after a meeting with WWE management at Monday's WWE Raw tapings. Punk is under contract until July, but the feeling right now is that he is no longer factored into the company's plans moving forward. The plan was to work towards a CM Punk vs. Triple H match at WrestleMania 30, but not it seems as if WWE may slide Daniel Bryan into that slot.
Some sources have stated that the original script for Monday's Raw called for Punk to wrestle Antonio Cesaro and lose after Kane interfered in an Elimination Chamber Qualifying match. Other sources claim that he was not scheduled to wrestle, but instead say he was booked to do a promo that would follow up on Kane causing his elimination from the Rumble. Either way Punk was booked for Raw, but was not backstage for the show or at Smackdown.
The feeling is that the late re-writes for the show on Monday were because Punk had informed the company he was going home and wouldn't be back. Word is that this is not an injury situation, but instead a case of burnout and unhappiness with the overall direction of the company. Punk had been very vocal in the past about the usage of returning and "part time" stars being pushed beyond wrestlers who were working full-time for the company.
During a recent interview with Ariel Hewani, Punk spoke about working the crazy WWE schedule, and only ever taking time off for injuries. Punk worked over 50-minutes in Sunday's Royal Rumble match, and was described as being "pissy" backstage. But some has said that this is not unusual for him.
Another source noted that Punk's last goal was to work a WrestleMania main event, and that it may be a situation where Punk realized it wasn't going to happen this year and with his WWE deal expiring and him being so goal oriented, it may have weighed him down when he realized it would not happen.
Also during the Ariel Hewani interview, Punk was asked about WWE killing his momentum at times and why such things happen and stated that he'd like to think they don't make those decisions on purpose and it's more they wanted to go in another decision and that it was a different era.
Punk's last Tweet was from Monday night, and reads as follows…
Thanks for all the support. Keep being you guys, it's pretty cool.