Since we're already getting a Sanji vs Queen chapter, the Zoro and Sanji battles will most likely end before the 15min time limit
Afterwards, there will probably be a birdcage slown down moment with Momonosuke(who is already managing to use Kaido's clouds) replacing the dressrosa citizens, all that in the time for Luffy and Kaido to have their final showdown before the island getting saved from the explosion, most likely thanks to Yamato managing to disable them in time