Here's my take on it. Take it or leave it.
There are several wonderful attractions that simply, as great as they are, are not needed in Hollywood Studios anymore. Beauty & The Beast, Little Mermaid, The Backlot Tour, Indiana Jones Epic Stunt Spectacular, and American Idol.
Beauty & the Beast and The Little Mermaid have both finally received their own attractions in the Magic Kingdom. They are also heavily featured in a couple of character dining options, The Castle, Akershus, and more for Belle.
Also, Beauty & The Beast is in the Theatre of the Stars, which could be a space for a new E-ticket on Sunset Blvd, which it'll need to keep the crowds over there when the new Pixar expansion and Star Wars Land drastically switch the dynamic of people in the park. Also, people forget about the David Copperfield restaurant that was never built. There is space behind the theatre as well. Two new attractions on Sunset Boulevard.
The Backlot is taking up a lot of space that could easily be used for a
Pixar Place expansion (not Cars Land). The Streets of America can be far better utilized as a future expansion pad.
Indiana Jones is a wonderful show, but personally I feel that if there were two IJ attractions, creating a mini land of some sort, would have a stronger presence in the park. One attraction in the entire WDW resort (aside from one scene in the Great Movie Ride) seems to stand out a little bit more, and it's an old show anyway that has issues during bad weather... The space can be better utilized. Sorry.
American Idol Experience... Do I list to give a reason?