There were quite a few big changes in a way, I guess...but nothing that was BAD per se...theres a lot of heavily implied Grey Jedi stuff which is pretty awesome O__O there were some frustrating/WTF moments that took a lengthy discussion between my sister and I to make sense of but overall I thought it was good and I'm excited to see where they take it with the next one xD 

Woohoo! Good luck, hope it goes well! :D