Since Disney started the Live Action adaptions of the animated fare something had to be the first disappointment. I was surprised that Dumbo was coming so soon frankly. Cinderella, BatB and Jungle Book all made sense to me, my feeling was they were at the top of the beloved in Disney circles. Dumbo...not so much.
Aladdin....you are on the clock and that could go either way but it is a beloved animated film. I would've thought they might make Little Mermaid a higher priority. With Frozen going for an animated followup it'll be some time before that is done live action I'd wager. However, when they do...watch out!!