I mean, pretty close:
Punk went on to win the title from Austin Aries in June 2005 even though Punk had already accepted a deal from WWE. In what became known as the “Summer of Punk,” he repeatedly threatened to take the ROH World Title with him to WWE before losing it that August.
I think its a nice touch but I very much doubt this means anything other than Anderson was a free agent while being champ and ill just drop it whenever he can. If he has more than one njpw date booked, Im sure WWE will let him finish up. I doubt it means any sort of partnership, just that with Vince gone WWE can not only do this kind of stuff but also acknowledge other companies if they so choose.