Looking back at Drake's small bit of backstory during Dressrosa, it still bothers me why that one crew member would ask him to try to "do something" the cage if he didn't have some sort of ability at that time. I hope we get confirmation on that this arc since Oda seemed excited to tell Drake's story.
The reason I bring up Drake's backstory is because I feel that there is more to tell since he had a small spotlight in what was Law's backstory overall. Maybe we'll get a few flashback chapters during this Arc since as it stands, we don't know much about Drake.
I really hope Oda shows near everything that Drake's (and Kid and Killer and Apoo and Hawnkins) got this arc as LZ+L are the only members of the WG so far that have a decent amount of named attacks so far.
So we see Who's Who in Ch.981, Black Maria/Sasaki, Ulti&Page One in Ch.982, so there must be at least a 50/50 chance Drake is in the next few chapters. He's going to start making more moves sooner or later AND Luffy has yet to meet Drake yet too out of the SN that have allied with Kaido. I do wonder when that will happen, as well.