Luffy Will be in 3 floor next chapter 997, floor 4 in 998, floor 5 in 999, and the enconter with not only Kaido but BM by his side in chapter 1000.
1000 Will be luffy, Kid, Law, facing Kaido and BM. Maybe with Zoro, Sanji, Jimbei, Killer Yamato and Drake too by their side, and King, Queen, Jack and Whos who on the other side too.