OK. I have been thinking... Which may get me hurt one day but that is another story!
So the D23 website states "Disney Infinity will pull out all the stops with several surprises fans won’t want to miss, including un-announced character reveals, brand new game features and an exclusive giveaway of a never-before-seen Disney Infinity figure for every fan in the audience!"
I am assuming the reveal will be the Toy Story Playset and maybe Wreck it Ralph figures... And I am torn on the giveaway. I will guess either the rumored Sorcerer Mickey or one of the announced figures. I honestly cannot see them giving a true Exclusive at D23, not even a variant. I hope they give the Sorcerer Mickey (It would be appropriate) but I have a feeling it will be something else.
I am not getting my hopes too high because Disney has disappointed before. But with the past 2 expos getting a ton of criticism Disney needs to and has been pulling out all of the stops to make this one extremely successful.