The only thing that mity said about love route MC is that Tenzin will not be the protagonist. I bet that will be KaiOn another note, has Mity said anything about who you play as on the book 4 love route? I was gonna assume Asami, but she doesn't airbend so I guess we would still be Tencent or whatever his name is. I've only played the love routes on the first 3 books so far, how much does the story differ between the routes in each book? Like, is there that much of a difference in the story beats that the love route of Book 4 will take 6 months to complete?
Love route is always more developed than slave route so yeah we can assume for sure that will take lot of time with a completely different story