Took this screengrab from the latest DSNY Newscast video: I hadn't seen the plans for the Eastern Gateway overlaid on a satellite image before and was surprised by how much potential space there is.
Obviously these are old plans that have since been rejected but it seems like they could potentially double the available space in Hollywood Backlot:
I left Disney Jr. theater, Animation Building, the shops on both sides of Hollywood Boulevard and the Hyperion Theater to form the 1920s Hollywoodland boulevard for the Red Car Trolley to run down. I also tried to leave two lanes of backstage access on the perimeter. Altogether this is 8.77 acres or 3.55 hectares
This compares relatively well to Shanghai's Treasure Cove land at 7.87 acres or 3.19 hectares
Obviously this is a very imperfect estimate but I thought it might be an interesting way to see how much stuff Disney might be able to include in the Avatar area. Treasure Cove has its E-ticket, a stunt show, two play/explore areas, three snack carts and one quick service food spot.
Between Hyperion Theater, Disney Jr. and the Avengers Campus show offerings I think this corner of the park could definitely use an additional ride over a show. Not sure what type of ride system would complement the Shanghai boat tech, maybe a minor coaster or well themed flat ride.