It could have happened when the series was still very popular, but the disappointing box office of Ducktales the movie broke plans for a Rescue Rangers movie and consequently no Talespin movie was planned either. (such a shame, but at that time people were not ready to pay to see the same thing they could just watch on TV - nowadays things are different!)

Now, the situation is even more complex. In the 2000's, Disney could (SHOULD) have done direct-to-video films of their Disney Afternoon series, not only would they have been better much better received than the unnecessary sequels to films, but they were SERIES so they were MADE to get continuation (instead of Cinderella or Jungle Book or...)

So I'd say, as long as we can't even get Disney to do Talespin comics (see the petition), there's not much hope of seeing them reviving it as a film. Unless they want to reboot the series completly in CGI form or something...