There is an image of a localized Facebook ad from WWE going around online of The Undertaker and Shawn Michaels being advertised for the January 9th episode of RAW in New Orleans at the Smoothie King Center. Michaels is advertised for a “special appearance” while it hypes Taker’s return to RAW.
Michaels will likely be there to promote his role in “The Resurrection of Gavin Stone” film as it is scheduled to be released on January 20th. Since the Rumble will take place in San Antonio, I would not be shocked if he ends up having a role on that show. As far as The Undertaker appearing on the show, it’s possible that he will announce that he will be competing in the 2017 Royal Rumble match.
It should be noted that Taker and Michaels are not listed on WWE’s website or the Smoothie King Center website.