Depending on how he feels, The Undertaker might return to WWE either at the Survivor Series or the Royal Rumble pay-per-view.
As readers may recall, there were talks of bringing him back at SummerSlam to team with Kane to go against The Wyatt Family. According to reports, Undertaker actually agreed to work SummerSlam after WrestleMania but was legitimately injured when they booked him to get assaulted by The Shield.
It was also recently reported that Undertaker and his wife Michelle McCool recently visited WWE's Performance Center in Orlando, Florida. It was reported that Michelle looked in peak physical condition and actually looked better than she ever did during her time in WWE.
Undertaker also reportedly met with Triple H some time last week and HHH went over some creative ideas with 'Taker. No word on what exactly was discussed.