According to the rumors, Dave Bautista was seen backstage at the Royal Rumble pay-per-view as he was invited for a secret meeting with Vince McMahon where he was approached for an appearance in the upcoming Wrestlemania. This is said to be a one-time deal to spice up the card for Wrestlemania 32. WWE is said to be in panic mode with many major stars are on the sidelines due to various injuries.
However, the pitch was rejected by the former WWE Champion as it was not considered good enough by Batista. There still seems to be a chance for him coming as both sides are open to possibilities.