Yeah, but he does appear to be involved in some events that occur in the Bajor system in the new TP books.I don't think I'd say pointless, I know that a lot of characters are spread around now, but that doesn't mean new characters can't be introduced. And we do have two Typhon Pact novels involving DS9 characters coming out in a couple months, for all we know they could end with all or most of the characters back together on the station.
Well let's take stock(correct me if I'm wrong on any of these, ds9 characters are hell to keep up with)
Sisko - sadly keeping the hell away from the bajor system thanks to rboe
But she's still alive, and in the Bajor system, so it wouldn't be that hard for her to end up back on the station. She doesn't have to be in Starfleet to continue to play a role in the story.Kira - possible but quite a bit of writing required since she's all vedek'd up
He didn't play much of a role in the relaunch 1.0, so I don't see why this would be a problem.Garak - part of the cardassian government and focused on trying to rebuild cardassia so unlikely for anything but a cameo
Actually Nog's father Rom is Nagus, and as far as I know that hasn't changed after Destiny. I haven't read Indistinguishable from Magic yet, so I don't know exactly what it established about what he's been up to, but I do know that the Challenger was destroyed in the end of it, so I don't see why he couldn't end up back on the station.Nog - nagus so cameo only
I don't see why his being an adult would make him less important to the series. He was already an adult by the end of the show, and he still played a big role in it, not to mention his continued presence in the relaunch. Hell, he got a relaunch 1.0 novel focused entirely on him.quark - yes
jake sisko - not really relevant since he's not a kid anymore
He didn't play much of a role in the relaunch 1.0, so I don't see why this would be a problem.odo - lot of writing required
Yeah, but she is in command of a ship of the line, so she could easily still pop up from time to time. You also ignored Bowers, Leishman, and Tarses, who were all fairly prominent DS9 Relaunch 1.0 characters.ezri - no(thank god)
He and Sarina did go back to the station at the end, and we saw him continuing to act as the station CMO, so he's still playing a role on the station.bashir - doing all that secret agent stupidity, I would be absurdly happy if that was junked and he went back to ds9, but seems unlikely
He didn't play much of a role in the relaunch 1.0, so I don't see this being much of a problem.o'brien - possible, we have no idea what he's doing right now since the fun short story on cardassia.
And you forgot some characters:
Leeta - Married to Rom and still on Ferenginar
Kasidy - Now divorced from Sisko, but I believe she is still living on Bajor. Is friends with other major characters so she could conceivably still play a role, especially if Sisko become a big part of the series after the TP books.
Ro - Still on the station and now it's captain.
Prynn - Still on the station, not entirely sure if she's playing a new role though.
Ch'Thane: Last seen on Andor during Paths of Disharmony. I believe he stayed there when Andor left the Federation.
Vaughn - Still on the station, last seen in a comatose state, but at the end of Zero Sum Game he appeared to be improving.
Mathias - Current status unknown
Richter - Current status unknown
Kol - Current status unknown
Desca - Current status unknown
Naran - Still on the station
Trier - Current status unknown
Hetik - Current status unknown