Please note - there are rumors around the studio that this film my be delayed for some major reworking. The "relationship" between Disney Feature Animation and the crowd from Pixar is still being worked on. Rumors say that Pixar is reviewing each and every DFA film in production and they are not happy with the quality of what they are seeing. The director of American Dog has been kicked off that project and further changes are expected to come.
Tinker Belle is the center of a huge marketing effort to build a toy line on the size of the Disney Princesses. The dolls, dresses, and various other "buy it or I'll scream" trinkets are set to debut this summer. So on one side you have film makers pushing for a good movie, one that support sequels and all the merchandise, then you have all the marketering types who only see the movie as a commerical for toys.
No one who will win at this point. But I wouldn't place my money on quality winning out.