<p>At this stage in the book, I have lost hope of Kai returning for something important in Book 4. I think Episode 9 will feature Kuvira/Toph and the spirit vines, not much time for Kai. From Episode 10 onwards it will probs be the finale or the buildup to the finale, which leaves no time for Kai unless he aids Team Avatar, which he hasn't (YET). He might get a scene or two in the finale like Ty Lee and Mai did at the end of the finale to ATLA. Do you think Kai will return for the remainder of this book or do you think he will be forgotten about? If you do think he will return, what do you think his role will be?
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