anyone who thinks that elbaf was going to be the ussop arc is breathing exorbitant amounts of copium.
bro dude, no one pays attention to him, he's still acting like a bum, he's already started the arc and we already have a setup to keep riding nika, he's even focusing on the holy knights already, even zoro is getting some different dialogue instead of being an aura trader like usual.
at this point it is simply insane to pretend that elbaf will be ussop's arc, when loda can't even spend 5 minutes of the arc we are already getting into anything else but paying some attention to that lazy ussop.