Yeah, the question is when/who shows up in Wano for Pluton.
I can still see a Straw Hat split up, with an Usopp group staying in Elbaph and Usopp having his own Elbaph adventures. IMO, whenever Teach shows up, the Straw Hats will show up after, but, I think the WG will get there, first, since V. Nusjuro should be able to use the Abyss to invade the country. Once the WG uses the Abyss to invade Wano, tho, Wano will know they have that power, so it has to be a decisive strike.
We'll see if Elbaph does have time distortion like a lot of people think it does, there's a chance most of the Holy Land is just gone by the time Imu goes back to Marijoa.
There's a good chance the war for Pluton becomes a drawn out engagement, and that a lot of fighting will go on before Teach/WG/possibly Cross Guild before the Straw Hats show up.