Elbaf will obviously be a major arc for usopp. It most likely than not being when usopp certifies that he is a brave warrior of the sea
Not only does elbaf obviously have giants aka the warriors usopp looks up to the most but there are likely even more things that can tie to usopp
Just based on the big tree elbaf might not just be the home to the Adam tree but specifically plant line in general. If it is it makes Noland at one point visiting extremely likely. The same way he went to green bit
While not technically a botanist usopp obviously learned a lot about plants during the timeskip and has weird parallels to noland already. Elbaf might even make another statue dedicated to him
If for better or worse big mom does end up going to elbaf I think a potential amazing moment would be usopp standing up to her. With all the giants afraid of her if usopp is the only one to stand and defend their honor it’d be dope especially if she uses soul pocus
There being a giant named the god of tricky and deception might lead to him and usopp having interesting interactions
It might also be the arc he unlocks conquerors if he ends up getting it
With all that said I think it’d be the perfect time for him to also be officially labeled as the vice captain of the crew. I just think he really derserves it
