I only think they should try and decanonize the sequel trilogy if they plan on doing a story with Luke, Han and Leia between ROTJ and TFA. I can understand the questionable direction all three characters have to reach to line up with The Force Awakens would limit the stories they can do with Luke, Han and Leia and sour the story they're telling because it cuts down on opportunities to surprise. But if they really aren't interested in doing that (I think, they should, I think there is a post-ROTJ story tied to them that is just waiting to be told), then I think they just need to distance the franchise from the ST. Don't reference it much, don't pull characters from it very often. Just move on.
If they do decide to tell a post-ROTJ Han, Luke and Leia story, I really hope they just re-cast all 3. We got to see Mark Hammil's Jedi knight Luke done justice with Mando season 2, I think it's time to move on. Over-reliance on CGI causing a lack of tangibility was a valid (but maybe overblown) criticism of the prequels. If we get a set of movies where Han, Luke and Leia are deepfake AI creations, I don't think the public is going to want that. I think they should re-cast them and tell a great story with them. Obi-wan has been played by multiple actors and Ewan, Alec and James (Clone Wars VA) all did a great job and are loved by fans. I think we really need to stop acting like "you just can't" re-cast Han, Luke and Leia.
If they do decanonize the ST, I think they should do it in a way where they still sort of happened, but they just don't matter (make it work some how, if you have to pull a MCU-like multiverse thing to "move" the Sequel Trilogy out of the way, then just do that). I don't like the ST movies, but it sets a dangerous precedent to just hand-wave away 3 movies because they aren't good and lack fan appeal. A lot of actors and other talent worked on them and there are fans of those characters. Completely erasing it all feels a bit mean-spirited but at the same time, should the potential for good post-ROTJ stories be heldback for these movies? That doesn't feel right either. It's a mess.
To answer some of the questions posed in the OP:
1. Yes, I do think an Heir To The Empire-esque trilogy or Disney Plus series centered on Han, Luke and Leia should happen but I'm leaning more towards re-casting Han, Luke and Leia over deepfaking them. I'm not passionately against using deepfake OT characters though. I could see Lucasfilm being motivated by the chance to see what could be accomplished with that technology and this would be a good use for it.
2. Revisit George's outline? I am interested in this happening as well but not at the expense of an Heir To The Empire-like story being told. Ideally, I'd like to see both. I'm getting the impression Maul may not be completely dead (or they're just willing to ret-con his Rebels death) based off quotes that have come out following the release of his new series. Maybe George's plans for Maul and his apprentice may still see the light of day.
