I labeled the structures for those who are confused as to what's what:
1. DHS office bungalows (likely would not be relocated)
2. Jack Sparrow / One Man's Dream
3. LMA "Practice Lot" (considering its location being blocked by #4, would most likely remain as Cast Member backstage parking and storage area... but who knows?)
4. Creative Costuming and Scenic Shop (likely would not be relocated)
5. Toy Story Midway Mania
6. Great Movie Ride show building
7. Soundstage 1 (I believe) - vacant, rumored site of elusive Monsters Inc. coaster
8. Was once part of the walking tour - the "Special Effects Workshop and Shooting Stage". It is currently unused (though last I've heard, many props are still in there.)
9. Backlot Tour Special Effects Water Tank - the first part of the current Backlot Tour.
10. Backlot Tour entrance and queue.
11. Backlot Tour prop warehouse and tram loading station
12. Backlot Tour tram unloading station and AMC gallery.
13. HISTKMSA
14. Misc. service building (likely would not be relocated)
15. Catastrophe Canyon
16. Walt's plane
17. LMA stadium
18. LMA marquee
So that should give you an idea of why I enclosed what I did - its unlikely that they would remove the buildings I mentioned and I can't see them making any modifications to world drive. The most logical options are to play with that circled area, or move the main toll plaza and entrance road.