For sure Orochimaru and gang. Jugo has constantly declared his loyalty to Sasuke, he won't be leaving him I wouldn't think or expect. Sai definitely wouldn't follow Sasuke after having all his character development from being with Team 7. The rest, I dunno. I would expect Naruto's and Sasuke's collision on morals would split the views of everyone only to where most just support one side with words, whereas a select few (being team Orochimaru and whoever) would actually take action along with Sasuke.
