I worked on DS9 and they are VERY happy with how the show's story wrapped. And with all the previous Trek creators (Berman, etc.) now out of the loop (thank god!), there will never be any interest by Paramount (which HATES sci-fi and never understood Trek) in doing a DS9 movie.
Just be happy that DS9 eventually turned into a good show at all. Originally, the entire show's concept, storyline, etc. was stolen from J. Michael Straczynski after he pitched what would become Babylon 5 to them. So for many years, you could see that DS9 was a bad clone of the B5 storyline and thus floundering creatively, but eventually it found its own mojo in the final seasons and ended quite well indeed.
