PWInsider.com are reporting that Hulk Hogan could very well be in Las Vegas tonight.
Several fans as well as a "report" have said to have spotted Hogan last night and this afternoon. Hogan was rumoured to be backstage at Smackdown last night so these reports seem to be purely speculative at the minute.
If The Hulkster is in Las Vegas, it would be one mighty coincidence given that tonight is the same night WWE intends to launch the WWE Network.