Before I even get into the two spoilers, take these with an absolute grain of salt, specifically the first note.
ProWrestling.net is reporting that The Undertaker is, indeed, in Buffalo for tonight’s RAW and has been spotted by multiple fans at the airport. It should also be noted that the Undertaker was in Nashville for RAW 2 weeks ago but never appeared on the show.
The second hint comes from Arda Ocal of The Score. He tweeted the following picture of the WWE Active App that has a picture of The Undertaker’s logo on the home screen with a small preview of tonight’s RAW: