I am not 100% certain about most of the listed projects, so I won't comment, but the information about "THe Hefalump Moivie" you've given is inaccurate. Direct-to-video sequels and films developed from Disney's Television unit have never been produced by Disney's "Main" feature studios (Orlando and Burbank). The closest was "A Goofy Movie" which was animated by their Paris unit and had some clean-up and coloring (I think) done in Burbank. The sequels (and such) are usually produced by either their Tokyo or Sydney studios.
THM was animated by Walt Diney Japan in Tokyo. Sadly, it will be the last film animated by these incredibly talented animators as the studio is being shut down upon completion of THM (which may already be so). So, this film is not only "not in jeapordy" but in full production (but I'll bet the animators are working really slow so they can keep their jobs longer
I also want to say something, and I may be flamed on this board, but what's with all the hating?! Most of the people that post on this board just whine and complain about the "cheapquels."
I agree that Disney is running out of ideas and I guess I can reluctanly see how people's childhood memories are "ruined" by watching the Disney sequels. Okay. DON'T WATCH THEM. I would be amazed to hear someone say that the mere fact that they exist ruins their memories.
The Rescuers Down Under was (IMHO) one of the greatest films ever made- never mind the fact that it was animated, Disney, a sequel, whatever. I loved that film. I watched it on it's own merits and fell in love with it.
But of course it wasn't a "cheapquel." Beauty and the Beast is my favorite film of all time. The fact that there was a sequel or "midquel" didn't bother me in the least. I wanted to see it. Now, as it happened it was a BAD MOVIE. That didn't stop me from watching other sequels.
I've been dissapointed before (Pocahontas 2- or at least the second half of Pocahontas 2, Cinderella 2- although the animation was gorgeous, and the awful Stitch the Movie) but I loved "Return to Neverland" and "Lady and the Tramp 2." Also, whether anyone agrees with me or not I felt that "The Lion King 2 was SO far superior to "The Lion King in terms of animation and character development it wasn't even funny. I adore the work done by the Sydney and Tokyo studios (Gargoyles was animated by the Tokyo animators), and I'm sad that the Tokyo studio is closing. I'll gladly buy anything animated by Sydney. Even if the story is bad the animation is sure to be beautiful.
Anyway, again, what's with all the hatred? Either watch the sequels or don't but judge them on their own merits.