This was one of my favorite set of limited series when I was a kid, each series exploring a key moment in the original trilogy where a small change - Luke's torpedo misfiring in the Death Star, Han's Tauntaun dying earlier, and Jabba hitting C-3P0 too hard to translate - led to significant differences in the story, including instances where Leia becomes both a Dark Jedi and Jedi herself under Yoda's training (since Luke froze to death on Hoth). Given the fact that Marvel are masters of the 'What If?' comics I was wondering whether they should consider reviving the premise, maybe do some for the Prequels, Rogue One and the new trilogy.
I think the two I would most like to see is a Revenge of The Sith Infinity where Dooku doesn't die and turns Palpatine's plan on him, leading the Confederacy to win the Clone Wars but also leave the Skywalkers as a single family unit with Anakin, Padme, Luke and Leia. And then a Rogue One series where Jyn and possibly some other members of her team survive Scarif's destruction, leading them to get caught up in the events of the original movie and affect things accordingly.