They can retheme the area around the current location in DHS to be a Tatooine Space Port. That way, you can incorporate Mos Eisley Cantina. They can also expand on Kashykk, Mustufar, Naboo, Dagobah, and any planets that could take place for Ep 7-9.
The thing with DHS is that I don't see the current location for ST as being the best location to do something like that. The best way for them to fully take advantage of it is to build a whole new area where they are not stuck in such a restrictive space. Well they could remove Sounds dangerous and Indiana but then it the theming would clash with echo lake, unless they completely built new surroundings for echo lake then built the new area on the other side (I don't see TDO doing that though as it would be super expensive).
The best thing I could see them doing is completely remove Star Tours and retheme the entire area into an Indiana Jones area. This would be done by reusing and expanding the Star Tours building (by moving prospect ave and maybe moving the car park entry road a little, or even building it on the other side of the roads similar to what the did at DL) to make it into the Indiana ride from DL. Then in the space between them (where the backlot express is maybe even removing some of the buildings on the other side of prospect ave) install Indiana Jones and the Temple of Peril. Then for the sounds dangerous building, retheme it to a restaurant or shops or another Indy show.
Then for Star Wars demolish LMA and the (not a proper) backlot tour, and put in a completely new Star Wars area there. This way they could take full advantage of Star Wars and they could do it how ever they want without having to worry about how it would look from another area of the park.
With the Star Tours ride only recently being redone, I highly doubt this would happen plus with TDO lack of spending it will most likely never happen. That's they best way they could do it, and I just don't see expand Star Wars in the area it currently is.
