Source: The Wrestling Observer Newsletter
The current belief within WWE is that if things go as planned with the
filming of the WWE Studios film “Lockdown,” that Dean Ambrose will make his
return doing a run-in either at the Night Of Champions pay-per-view on September
21st or on RAW the next night.
We have been reporting for weeks that there was a strong possibility that
Ambrose could appear at the Night Of Champions show and now it seems that WWE is
actually planning for that, or as noted, for him to return the next night on
RAW.