As you may know, WWE Backstage is being scaled back by FS1 and will not be producing any new weekly shows as of this writing, for the exception of select special occasions and/or events.
Also Check Out: WWE Backstage No Longer Being Produced Weekly, FS1 Scaling Back On WWE Programming
CM Punk is signed to FOX, not WWE, so therefore he would have to sign an official WWE contract in order to appear on their programming. There will not be any new episodes for the foreseeable future. The horrible ratings are said to be the main reason why FOX Sports doesn’t want the show to continue on in a weekly format.
FS1 is scaling back production on its boxing and WWE shoulder programming. "WWE Backstage will not longer be produced weekly. It is eliminating "Inside PBC." Double digit job losses as a result. SBJ Media will have the full story tonight.
— John Ourand (@Ourand_SBJ) June 22, 2020