it was an excellent finally. Yes, it would have been nice for Bajor to join the Federation. Yes, it would have been nice if the producers and Farrell could have reached an accommodation so Worf could have flashbacks of Jadzia. I think it would have been a nice touch when Kira is walking through the bar after talking to Quark and before we saw Jake and Kira looking out the window, if we saw Morn in the background signing a padd and giving it to Quark to pay his tab and walked out.
Notwithstanding all that, they still did a fantastic job. If they didn't wrap up the Pah-Wraith plot, it would be a glaring hole. What would have happened to Winn and Ducat? And if the Dominion war ended prior to the last episode, the last episode would seem like an anticlimax.
Ideally a year or two after the end there would be a made for TV movie with Sisko reappearing in visions, seeing his baby, seeing Jake, Bajor joining the Federation. There would have to be other plot elements too. Hm. Maybe the Romulans discover the plot of In the Pale Moonlight?