According to Cage Side Seats, local advertising is listing Shawn Michaels as the special guest referee for the Undertaker vs. Triple H match at the WWE Super Show-Down event. This has yet to be confirmed by the WWE but it appears that this will be his role at the show.
The WWE Super Show-Down pay-per-view event takes place on Saturday, October 6, 2018 at the Melbourne Cricket Ground (MCG) in Melbourne, Australia and will air on the WWE Network. Both Raw and SmackDown brands will be featured.