I predict that EQG will be popular among a select few bronies and most others won't care about it after they've seen it. This is because it doesn't apply to the story line and is just a side story to mlp.
I personally don't like the setting of EQG because the mane 6 are in high school and there human versions are supposed to be equivalent to there ponie versions. They were all out of school, living on there own and supporting themselves. And we can't say that ponies never to to school because we've seen many episodes featureing the cutie mark crusaders in class, and Twilight has , on multiple occasions , mentioned magic KINDERGARTEN. This means that they most likely have the same levels of schooling as humans.>> preschool, kindergarten, elementary, middle, high and a version of college.Meaning that the human versions of the mane six are not exact human equivalent of there ponie versions.
I also dislike the fact that they don't have there horns, wings or cutie marks.
Other than that I am interested in seeing how the movie will play out and conclude.