They will. And SeaWorld will follow.
It has been on. And if Cameron isn't there, it means Fox finally lit a fire under him to get his butt moving on Avatar 2 and 3. They were really mad at how slow the process was going last I heard.
I actually helped my friend fabricate an Avatar themed patio table. It's actually pretty cool.
Probably.
If they can heat/cool, have cup holders, menu buttons to order drinks/food, massage your back and give you a great view, then yes. Gosh I miss Vegas.
You'll most likely, if all goes according to reports, see Avatar for the first time. Probably will hear about the new parade(if its ready) and Spectro coming back. I dont expect anything about the shows or Cars till D23 Expo.
Many outside of Disney believe that's exactly what they plan on doing; especially down the road(both Universal and SeaWorld). Where I stand, which is more on the SeaWorld side of things, they fully expect Disney to come out with something about Avatar. So much so, that they have been getting a ton more Empire of the Penguins goodies ready for fans. There is a big blitz coming from them in the not to distant future. They are determined to not be overshadowed by Transformers.
Now like I said, Im seeing it from SeaWorld's POV. But as far as everything Ive been told, which has been all year, Avatar has been chugging forward full steam. They apparently got most, if not all, the survey work done and are just getting the logistics of building down on paper. Either that or they have SeaWorld and Universal completely fooled. Cause SeaWorld has been having tons of meetings recently about if they should delay their next big thing till 2017 to avoid competing with Pandora. Which is a big deal, since the year delay will probably cost SWO a nice chunk of change. Not that the whole thing wont already, but still.