2012:
This should almost go without saying, but my very first move would be to give each film of the pre-existing I-VI saga its own “all versions” edition like how WB handled Blade Runner. As a show of good will to George, I’d extend an olive branch by inviting him to make whatever changes he wants to his versions and I’d even offer to finance a complete re-do of the cgi, essentially a Special Edition 2.0, if that’s what he wanted. This would be on the understanding, though, that this would be the final edits he ever makes to the films.
Speaking of George, I think I’d keep him involved with 7-9 and at least try to incorporate more of whatever his ideas were for the ST. I don’t think I’d get Abrams, it would either be Johnson from the get-go or another filmmaker who’d only worked with smaller budgets just like George had when he made THX and Graffiti. It’s been a decade, so who knows who that could’ve been, but I wouldn’t get hung up on “this person basically already made a Star Wars movie so just give them an actual Star Wars movie” like Lucasfilm did when they courted JJ.
…But here’s my little twist, since this is all a thought experiment anyway…
…I’d insist they figure out a way to set the ST within the confines of the existing EU, if for no other reason than it would force the writers/directors to get creative and not lean on Nostalgia. Nothing that’s happened in the years since Endor needs to be referenced (Coruscant wasn’t so much as mentioned in the actual ST anyway), but there would be certain unavoidable limitations in place.
2022:
George, Rian and JJ all get offered the chance to make whatever changes they’d like to their respective works. All eleven films get the Blade Runner treatment, with all the deleted footage from Rogue One, Solo, and TRoS finally out there for all to see.
Final Cuts of all nine main saga films get released in theaters in chronological I-IX order, with only a week between the re-release of each film just like the Saturday matinee serials that inspired Star Wars in the first place. Rogue One and Solo would also occasionally be shown theatrically, as would the original cuts of the OT.
Tell a new saga taking place thousands of years either before or after the films we know and find a young, hungry director for the job.