While we still do not have a definite answer as to how long he has been upset with the company, we do know now that CM Punk was already contemplating a departure from WWE as early as Royal Rumble 2014. He vented to Mick Foley at the time about not being happy within the company and having trouble dealing with injuries.
There are talks that Vince Russo will be making his return to TNA soon. Some within in the company already feel that it is a surefire thing, as communications between he and Dixie Carter are said to have taken place already. As expected, the company is not confirming anything.