User blog comment:B214/Question & Answers 5/@comment-26296572-20150411032118/@comment-26209278-20150412172522

I think it may be after 6. With this episode titles and their descriptions released (look at season 3 discussion), there's nothing said about it, 3 will most likely be the Kuroka battle and Loki first appearing, with episode 4 being the first brawl between Loki. I'm not sure, i'm just going off of the translations for the episode descriptions