Details are sketchy right now but word is that Orlando officials want to host WrestleMania 2 times every 10 years as part of the deal. It's said that talks are serious right now and Triple H is handling a lot of the negotiations. However, nothing is expected to happen on the ground at a potential Hall of Fame location until late 2013 or early 2014.
The establishing of a physical Hall of Fame in Orlando may also be tied in with some major developmental changes in the state of Florida. This wasn't mentioned by a source but it sounds like WWE is trying to set up another central location for the company outside of Stamford.