This is exactly what I have been saying! They can easily maintain the studio aspect of the park with a little TLC...even if they do change it to Disneys Hollywood Adventure, they can still keep the studio theme, having you enter various different studios within the park.
Sunset Blvd can be renamed Golden Hollywood Studios, the golden age of film.
The front section to the left should be Lucas Studios. Replace the stage show with an Indiana Jones ride and add a ton of Star Wars sets and rides.
Muppet Studios...add a dark ride and retheme mama melroses to Chefs restaurant.
Pixar Studios, using the entire backlot and cars show to expand that area and add many rides. Replace it with a better pizza planet and a new sit down restaurant with toy story characters. ( which would be a huge money maker)
Turn the animation courtyard into Disney Animation Studios an add a dark ride or 2 involving animation or even an actual Mickey Mouse dark ride.
It honestly wouldn't be that hard to do these simple things, but money seems to be the biggest issue...if I can come up with things like this, why can't people that actually work for the parks division do it?