WWE’s contract with Brock Lesnar allows them to use him on a per-need basis if they have any plans for him as WWE World champion, with WWE paying him additional amounts for those dates based on his contract. As WZ reports, there are currently no advertised dates through the end of the year which may well indicate that there are no plans to use him until the Royal Rumble.
Per 411mania
That is way too long for champ not to be on TV.