According to several readers, the official website of the Bon Secours Center in Greenville, South Carolina is advertising the following on December 8th:

“RAW Main Event: John Cena and Dean Ambrose vs Money in the Bank Contract Winner Seth Rollins and Kane. Plus, you’ll see WWE World Heavyweight Champion Brock Lesnar, WWE COO Triple H…AND The Slammy Awards will take place live in Greenville!”

Unless Brock Lesnar returns to WWE prior to December 8th, this is the first and only show he is being advertised for from now until the end of the year. WWE could always (and likely will) add him to more dates before or after December 8th, but if he does not return before 12/8 then it appears as if Lesnar’s return and the Slammy Awards will be on the same night.