WWE’s official website has addressed the untimely departure of CM Punk. This is what they had to say:
“It takes a bold, bold man to call himself The Best in the World without any hint of showmanship to it.CM Punk was nothing if not bold. The self-appointed heir apparent to Cena as the face of professional wrestling, Punk’s agitation over being passed over festered into an earth-shattering “pipe bomb” that took Cena, the McMahons, and the institution of sports-entertainment itself to task. He then promptly won Cena’s WWE Title and gallivanted off into retirement, but you probably don’t need Wikipedia to know The Straight Edge Superstar couldn’t stay away for long. He eventually came back to further challenge Cena’s dominance and beat him more often than not. These two were having classic matches for years after that initial clash. Perhaps the greatest disappointment in Punk’s untimely departure is knowing they definitely had a few more in them.”
Punk's merchandises were removed coincidentally from WWEshop.com which could have been a response to his advocate’s 22-page letter, which was sent to the company regarding the unpaid royalties that Punk felt they owed to him and also due to the usage of his name and likeness specifically in the WWE 2K15 game.
WWE felt that they did not owe him anything as he had breached his contract by quitting the company earlier this year.