This, I believe, is still in speculation. Personally, as cool as I think it would be, I would also think that it would be a huge cluster-eff of a situation. Imagine Harry Potter size crowds of schoolkids and fanboys piling on top of each other to use any of the effects. The animations would pretty much run non-stop all day and with that kind of new(er) technology I can almost guarantee that the downtimes of the effects would be through the roof. I'm no mechanic, though, so I could be wrong. If they do decide to implement it, I would say it would be smart for them to wait until at least the summer opening crowds are over with, even though we all know from Phase 1 that the crowds never will be anything less than astronomical.