My initial thought was that Zoro was in the air above the island close to the dragon head (green circle) and launched down a flying slash that cut through the dragon and then King.
But as I'm re watching this it seems that Zoro actually jumped all the way down cutting the dragon while passing through and then basically arriving in front of King (red circle) and cutting him in CQC, which means that right now he's in mid air outside Onigashima and needs to push himself back with Clear Lance or somebody needs to pick him up...
What do you think?
@nik87 @Geo @HA001 @Aknolagon @Cinera
Behind the leaker logo there's a speech buble where Zoro says "飛龍侍極 " which is the final part of the attack name "Flying Dragon Extreme Samurai" , so Zoro only launched the attack after he had already cut through the dragon, which means he's really in the red circle.
He probably launches himself back with Clear Lance and then goes to sleep.