Just fanboy spitballing, but I'd love to see something that strikes a balance between the darkness/grittiness of Andor and Rogue One and the intrigue and magic of the originals. The Jedi are sort of irrelevant in Gilroy's stories and I understand why - they introduce a level of fantasy that easily comes off as contrived and is hard for even a good actor to sell as we saw in a lot of these failed shows. Dave Filoni will never do it, he's too busy chasing the originals' tone, though parts of the Clone Wars came close.
Even though they're the most important figures in the universe, I feel like a truly heavy, meaningful Jedi-centric story hasn't been told. I'd love to see someone do the Jedi stuff without the comic relief, with a lot more visual beauty. I love Denis Villeneuve but his scripts are bland and the actors' performances in his movies are a little plastic. But someone with that visual sense but better writing and acting...that would be f***ing perfect.