The "old news" on POWN website had Diney working on "Hall Monitors" (animated Tv show). I would think that Disney would have something coming out sooner than later. And I agree with you it will probably be Tv related (Disney channel, Saturday on ABC). It does take a couple of years to make a movie.
I personally would like to see a Saturday series with one or many of the super heroes. When I was young we would look forward to Saturday morning for certain cartoons. Old or new it was a ritual every week. I know with cable and the unlimited channels that are in homes today make that a little more un-practical but hopefully you get the idea... Announce or do something....