I was talking to a CM friend of mine who works at both BTMRR and IJA who updated me on the other to AA's of Indy.
WDI is still working on the other two new AA's and finding ways to improve the ride which means another refurb before Indy's 15th might be occuring after the Holiday season.
The new third Indy AA is going to be unique as it might be able to interact with the jeep's occupants. I'm not sure if this will be similar to the Potato Head AA and the Roz AA on the Toy Story and Monsters Inc rides but it's sounding like it. If this is true, then it'll be worth the wait.
I putting this info as rumor until confirmed