Would it be better if Avery Brooks was involved? Yep, 1000%.I think all of this depends on how willing Avery Brooks is to come back. I don't know if he's done much acting recently. I would say the chances of an animated followup are higher than live action.
But if he’s unavailable, or if he does not want to do it, there’s a workaround as I described.
And the recent Star Wars trilogy could be guide as to how to do a DS9 film trilogy on Paramount+. The first film is Kira’s story, the second film is Sisko’s, and Bashir’s is the 3rd film.
DS9 may not be as popular as TOS or TNG, but they still have a decent sized fanbase. We aren’t talking about ENT here, which itself has been rehabbed over the years and get new fans day by day.All those threads are appealing to small group of fans. They do not merit their own follow up.