l'm not sure the same principle apply for Bounties increases higher than 400 Million but it could..
Considering we are officially entering final saga, I expect AT BEST a single bounty increase before EoS.
I believe, considering Zoro's role powerwise, he's definitely breaking that 2B mark after beating Mihawk.
Shanks' crew is said to have a very well balanced bounty on their members. So we might see some really big numbers for them (or for BBP, in case Shanks gets offscreened).
It's do or die.
we getting big YC bounty levels for Zoro and Sanji.
Not just for them beating King and Queen, but the role of them being the "YCs" from the dude that commanded an alliance that took down 2 Yonkos and has a legendary fruit awakened.