Definitely a well done Star Wars land. Would be awesome.
I'd like to see some Cars stuff, but I don't necessarily want a whole land or a copy of DCA -- would rather have a different theme if they want to go that route (e.g. Monstropolis). But actually I'd be fine with a bunch of different movies being represented in an expanded Pixar Place.
And I'd love to see the IJ ride from DL imported to DHS, though probably not at the spot of the current show (which will likely be needed for a true Star Wars land) but somewhere else, likely maybe on Sunset Blvd.
Also, I think a good addition would be to have a version of Toontown in DHS -- themed to where Mickey and company work and make movies, as opposed to where they live in Anaheim. This would help with making the park more "Disney" and kid friendly while potentially adding some needed rides (like the Rodger Rabbit ride from DL).