I wouldn't mind at all if it follows the same direction as Aladdin - from what I've seen and heard Aladdin is fantastic and everything fans of the original movie could want. (That said, I haven't seen it yet myself, but I have tickets for it over Labor Day Weekend, but everything I've seen and heard about it sounds perfect to me.) Of course, Frozen needs more to be changed and added than Aladdin did to make it a truly great broadway show, but I may just think that because Aladdin is my favorite Post-1966 Disney movie.
Bobby Maler - I've actually heard a very mixed amount of responses to Tommy's DCA Frozen, at least from Parks and Frozen fans (I'm a huge Disneyphile and especially Disney Theme Parks fan myself). From what I saw of the performance it looked decent for the theme park. I've seen both people thrilled with the blind casting and what was done, and those who felt various aspects were disappointing even for theme park quality, mostly the costumes, and the singing quality on some of the cast. Not sure what the overall consensus is on the directing though.
Regardless, the final result will be a huge hit for at least the first year or two regardless of what they do with it, but I hope that even with that knowledge they'll still give it the full attention and treatment fans of the movie deserve. (I could care less about changing it to sate elitists and people who aren't Disney fans in the first place, but I still wouldn't mind changes made to change some of the flaws in the story, as long as it doesn't change the core aspects of the story that the fans love it for.