I liked the trailer, just wish Disney had been a little more respectful to it's own heritage regarding the Disney Princesses. Looking closer at them, I find their designs underwhelming. Perhaps not horrendously bad, but still disappointing. I mean, who can really put their hand over their heart and say that Cinderella looks like Cinderella? :o

Ages ago I remember people talking about there being a scene where a bunch of princesses are all together and they're arguing amongst each other or something. It's not really something I'd say I'm excited about as such, but I can imagine it'd be pretty interesting to watch.

Apparently, Disney has always been very careful on its princess merchandise to ensure that, when all the princesses are posing together in one picture, none of them are making eye contact. This is supposedly done because it helps the audience to remember that they are all from their own stories and canonically have nothing to do with each other. Now, they've decided to break their own little rule!

Replying to PrueFever's comment, I sort of agree if some of princesses' designs on the movie are kinda underwhelming and disappointed, especially Cinderella and Pocahontas. Although I'm pretty sure most of them are designed way more cartoony to fit the animation style on the movie (bigger head size, huge eyes, small lip). Also the princesses are seems likely more represented as theme park characters here and follows the franchise look (like, Cinderella has blonde hair/blue dress instead of reddish/silver one, Aurora wears pink, etc.)

I personally think the idea of combined all the princesses together is a wonderful idea. Though based on the trailer these princesses seems a little unconventional (almost attacking a little girl to enter your room and say hi seriously?)