God dang Kakashi to take off his mask lol. No but on the serious note, I kinda want like a marriage/baby boom... You know to celebrate the war is over haha.
Naruto marry Hinata. (she saved him before after all)
Kakashi marry somebody and take off mask during wedding to kiss the bride. (Aren't that epic?)
Mei marry somebody as well, so Ao can stop being constantly threaten.
Or some back story on different characters like Mei, Yagura, Yugito, Ryūchi Cave, Shikkotsu Forest, How Hashirama obtain his senjutsu and buddha, Asuma's kid and Kurenai doing etc etc.