In 1990 E.T. was originally part of "Expo Center" but the section directly across from Central Park was shaded orange and labelled as part of Hollywood. I see no reason E.T. wouldn't just be absorbed into Hollywood.
Transformers will likely just become part of "New York" despite the skyline on the ride and Rip Ride Rockit should just be in "Music Plaza." Done. No way they try to integrate E.T. into this new land that is otherwise completely dedicated to Dreamworks properties and the construction pretty much proves this.
Also Central Park (on the 1990 park map) was technically shaded pink as part of New York in the most hilarious roundabout way with a tiny little SLIVER of pink over the park area but in theory you could just consider the street itself as the dividing line between New York and Hollywood if it drives you crazy.
