WWE has not pitched Steve Austin an idea for WrestleMania 32 as of a week ago. The feeling within the company is that the creative team will come up with something and Austin will appear at the event. As of a few days ago, the team has not come up with the idea for him.
WrestleMania 32 will take place on April 3, 2016, at AT&T Stadium in Arlington, Texas. It will be the third WWE pay-per-view of 2016 will air on the WWE Network and some traditional pay-per-view outlets.
Source: WrestlingObserver.com