From your lips to Iger's ears!
I've got to be honest: I was really disappointed when I saw Indy at Disneyland for the first time (about 5 years ago). First of all, it seemed like a number of effects were not working (meaning the vehicle would pause or turn in a different direction as if we were expected to see something, or we'd hear a sound effect, with absolutely nothing actually happening). Not only that, but either there was a fog effect that wasn't working, or the thing was designed with an "open concept," so as soon as your vehicle entered the temple from the introductory "hall," you could see the whole attraction laid out before you in full view, with all the other vehicles along the track, the bridge, the snake, etc. It was one big, giant spoiler.
Let's hope WDW can design an alternative, or include some modifications, that can generate some suspense or offer some surprises even in B-mode.