I've seen people upset that this has a possibility to be after the sequels. Here’s a reason why, in my opinion, it could work well.
You see, after the sequels there is a huge power vacuum. For the first time in Millenia, there seems to be no central government or authority. People are on their own. Now, while we could get a new new republic, I’d rather not go this route.
instead how about a group of pilots that are brought together, a Rogue Squadron of you will, to help defend a planet? This could be First Order Remnant, Hutts, any crime syndicate or pirates. True the Seven Samurai story has been done often in Star Wars, but it’s a good story. Throw in a focus on space combat, mix in a bit of the A-team and it could be a great series - drawing inspiration from the books, but doing it’s own thing.
But the proposed setting details I outline above, make it all work. Welling doing mercenaries doing what they can to help people, despite having no authorization, unsanctioned because there is no central government, seems to truly fit the name and spirit of Rogue Squadron.