Source: PWInsider Elite
As of this week, WWE’s current plan is to keep The Undertaker off TV until WrestleMania 31. Unless something changes, Taker will not be appearing on RAW or SmackDown to help build the storyline with Bray Wyatt.
The idea behind keeping Taker off TV is that we don’t know where he’s been, we don’t know what he looks like or what his condition is so it will be a bigger surprise when he does appear at WrestleMania.