Jon Favreau Reveals ‘Rangers’ will take place not too long after ROTJ. Also, Rangers will be written by Favreau and Ahsoka by Filoni.
https://collider.com/jon-favreau-rangers-of-the-new-republic-ahsoka-news/

“That was a film that we all grew up with. I was an usher in the movie theater back in Queens when Return of the Jedi was playing so I saw that movie dozens and dozens of times at work and now it’s so fun to be continuing the story after that with some of those characters,”

So…Big Three back on the table?