As previously hinted, Hulk Hogan IS backstage at Extreme Rules tonight! This was confirmed on air on the WWE Extreme Rules pre-show less than 8 minutes into the broadcast. Prior to the broadcast, Hogan appeared to the talent backstage and apologized for his prior actions and words back in 2015, which led to his dissent from WWE.
During the Kick-Off show, WWE broke this news by announcing that Hogan has officially been reinstated into the WWE Hall of Fame. They also announced that he is backstage and may appear on the broadcast tonight.