I think the final scene being Obi-Wan and Maul’s rematch from Rebels might work depending on how it’s integrated.
It would be cool to have their final duel, but I don’t know if it makes much sense for this edit. Doing so would require a time jump, and then the story would need to spent lots of time on rebels (because Maul spends some time with the crew and looking for Kenobi before heading to Tatooine). Maybe splitting this into a two part story, one adapting Maul’s return and the other Maul’s revenge.
If it’s going to be “A Star Wars Story” I’d say it shouldn’t include a crawl, but we’ll see how Solo goes.
I think a crawl is needed regardless. I want to make this watchable for anyone who has never seen TCW before, because the show can seem daunting and sometimes you just want to watch the best episodes. TCW is at times a building block, and the whole Maul arc comes from Nightsisters. If I don’t add a crawl then I’d need to explain Savage’s backstory (why is he bad but not with Dokou), in which case things would start getting out of hand. I also want to specify the time period, while it might sound obvious on a SW forum casual audiences can get confused with when anthologies take place.
TBH I think it was a bad idea to not give Rogue One a crawl. The opening is vague and I’ve heard some casual fans thought for a while that this was after TFA. And without a crawl the opening would need to be a slow exposition scene, rather than get right to what’s on everyone’s mind- finding Maul.