Rocks, imu and maybe another guy from elbaf could be EOS.
Not joke, oda gonna keep blue balling the fanbase for a few more years before we actually reach the fights, i'm expecting 10 more years of one piece.
Oh yeah its definitely going to be a while.
At this point however, I think a lot of people wrongly believe all fights will be endloaded and for the next ~3-5 years to LT, there wont be any substantial arc villains from here to that point. Kaido and BM lost for a reason, and eventually more will fall too. Its just that time.
But I think what we forget is, theres' still plenty of candidates for fights left until the Grand War, and even some of them can coincide with islands they are tied to:
- Kizaru: Heavily suggested to be the next antagonist considering the present situation at Egghead
- Blackbeard: Either could be the main antagonist at Fullalead or he makes to a final showdown at Laugh Tale (imo)
- Shanks: Could have ties to Elbaf, could fall there, or he could fall at Laugh Tale, but his ties to the WG make me think he's survive past the expected point. Both him and BB aiming for One Piece does suggest either one or the other must fall by Laugh Tale.
- Kid: Must concede before Luffy becomes PK so either he loses to someone else or itll be Luffy. Ive guessed Lodestar.
- Weevil/Loki/Ochoku/Silver Axe/etc (some potential Silver Medalist Pirate/Giant Antagonist) at any of the locations mentioned above or some new one
With this, if you dont include Akainu, Im, and the potential of Rocks or some other mysterious endgame antagonist (and to be frank, that could still be BB or Shanks) for the War, you can see that theres just plenty left for Oda to cover before or at Laugh Tale.