And then what? Chit chat with the Bajorans while waiting for the ink to dry on their Federation membership?
Dealing with a quadrant shattered by war, rebuilding the UFP and Cardassia, continuing the wartime alliance with the Romulans, venturing back into the GQ to explore.
DS9 had loads to do after the war, it really could have carried on either with Sisko remaining or Kira in command. Once Voyager
got back home that's really it, the continued series would have to go off in numerous directions and nopt follow the strict everyone in one place format (kinda like the start of DS9 season 6, numerous storylines spread out all over the place).