I would hope they would someday. Course in the case of Episode IV they’ll have to work out a deal with Fox as while Disney owns the prints, Fox has perpetual distribution rights.
I think if Disney will release the OUT in or after 2020. They will only release The Empire Strikes Back and Return of the Jedi will be released separately by Disney even if they will make a box set with Star Wars which will be released under license from 20th Century Fox.
Maybe Fox will do a standalone of Star Wars to go along the Disney releases.
This is almost the same case with The Incredible Hulk (released by Universal) in the Marvel Cinematic Universe: Phase One - Avengers Assembled box set, even if the Paramount movies were re-released by Disney thanks to being registered under Marvel rather than Paramount.
The Incredible Hulk is still released individually by Universal to this day thanks to being under Universal in perpetuity.
Again, Disney still included The Incredible Hulk in the MCU Phase One box set under license from Universal.
This also happened with Lupin III: The Castle of Cagliostro (released by Eastern Star Media in North America) in The Collected Works of Hayao Miyazaki box set, all the other Hayao Miyazaki movies are released by Disney in North America.
But the North American distribution rights of Lupin III: The Castle of Cagliostro are with Eastern Star Media.
Disney included Lupin III: The Castle of Cagliostro in the Hayao Miyazaki box set under license from Eastern Star Media.
Eastern Star Media also released Lupin III: The Castle of Cagliostro individually because they have the North American distribution rights.
If it happened with Hulk and Lupin III, it will probably also happen with Star Wars.