There are Three Clues:
1. Elbaf Battle is on Sea Level & Dorry/Brogy's Involvement is already Teased, so they have no Option but to use their Combo Attack
2. Ohara Books were moved by New Giant Pirates who worked for Buggy before, so Cross Guild might seek them
3. Next Week is Birthday of both Shanks & Mihawk
So it's possible that we will see Mihawk cutting Dorry/Brogy's Attack