Brock Lesnar is not only returning next week, but he'll be in action as well later this month before the Royal Rumble.
Lesnar will appear next week on Raw, most likely to address his opponents at the Royal Rumble, Braun Strowman and Kane.
Additionally, Lesnar will be in action the day before the Royal Rumble. He'll face Kane at the event, defending the WWE title. The main event for that show was originally set to be The Shield vs. The Bar and Samoa Joe, but obviously things changed with the Dean Ambrose injury.
The Bar will instead get a tag team title rematch on that show, as they will face new champions Jason Jordan and Seth Rollins. They lost the titles yesterday on Raw.
The main event for the Royal Rumble was set after Braun Strowman and Kane went to a double count out. Kurt Angle named both Strowman and Kane the next contenders to the title the following week on Raw.