As Oda revealed in SBS 91, just working under a Emperor can grant you a boost of your bounty
And after what happend on Dressrosa, the Strawhats and Gladiators received a boost of 50 million berry as general rule:
So I believe a general boost of 200 million berry for taking down 2 Emperors makes sense.
We know Cp0 was there the whole time and witnessed the fights, hence it should be easier for the goverment to apply accurate bounties unlike in other arcs:
My explanation for the bounties:
Zoro. 320.000.000B -> 1.430.000.000B
For being Luffy's crewmember and defeating King, whose bounty is 1.390.000.000B
And because I believe Oda keep the gag between Sanji and Zoro, but this time Zoro will be ahead of Sanji
Sanji. 330.000.000B -> 1 .420.000.000B
For being Luffy's crewmember defeating Queen whose bounty is 1.320.000.000B
Jinbe.i 438.000.000B -> 738.000.000B
For being Luffy's crewmember and defeating Who's Who, whose bounty is 546.000.000
The gap between him and Sanji/Zoro might seem a bit too much, but since he is a former Warlord and participant in the war on Marineford, the goverment should already have a good viewn on his strength and defeating Who's Who doesn't add much too that- as even implied in their fight:
Franky: 94.000.000B -> 494.000.000B
For being Luffy's crewmember and the victory over Sasaki, whose bounty is 472.000.000B
Robin: 130.000.000B -> 405.000.000
For being Luffy's crewmember and doing the Lion's share against Black Maria, whose bounty is 480.000.000B
She might surpass Black Maria's bounty, but personally I believe Oda is going to split the reward, because without Brook, she would have lost the fight
Also I don't think her being capable of deciphern the Porneglyphs is going to grant her a boost yet
Brook: 83.000.000B -> 308.000.000B
For being Luffy's crewmember and helping Robin with defeating Black Maria
Nami: 66.000.000B -> 291.000.000B
For being Luffy's crewmember and sharing the victory over Ulti with Usopp
I'm not sure how much Big Mom is gonna play into that, but Ulti's defeat is in my opinion depicted as team effort
Usopp: 200.000.000 -> 425.000.000B
For being Luffy's crewmember and sharing the victory over Ulti with Nami
Chopper: 100B -> 200B/ 200.000.100B
Two options:
Oda keeps the gag
Oda is finally giving Chopper the credit he deserves and he'll at least recive the general boost of 200 million berry
I bet on the former
For being Luffy's crewmember and defeating King, whose bounty is 1.390.000.000B
And because I believe Oda keep the gag between Sanji and Zoro, but this time Zoro will be ahead of Sanji
Sanji. 330.000.000B -> 1 .420.000.000B
For being Luffy's crewmember defeating Queen whose bounty is 1.320.000.000B
Jinbe.i 438.000.000B -> 738.000.000B
For being Luffy's crewmember and defeating Who's Who, whose bounty is 546.000.000
The gap between him and Sanji/Zoro might seem a bit too much, but since he is a former Warlord and participant in the war on Marineford, the goverment should already have a good viewn on his strength and defeating Who's Who doesn't add much too that- as even implied in their fight:
Franky: 94.000.000B -> 494.000.000B
For being Luffy's crewmember and the victory over Sasaki, whose bounty is 472.000.000B
Robin: 130.000.000B -> 405.000.000
For being Luffy's crewmember and doing the Lion's share against Black Maria, whose bounty is 480.000.000B
She might surpass Black Maria's bounty, but personally I believe Oda is going to split the reward, because without Brook, she would have lost the fight
Also I don't think her being capable of deciphern the Porneglyphs is going to grant her a boost yet
Brook: 83.000.000B -> 308.000.000B
For being Luffy's crewmember and helping Robin with defeating Black Maria
Nami: 66.000.000B -> 291.000.000B
For being Luffy's crewmember and sharing the victory over Ulti with Usopp
I'm not sure how much Big Mom is gonna play into that, but Ulti's defeat is in my opinion depicted as team effort
Usopp: 200.000.000 -> 425.000.000B
For being Luffy's crewmember and sharing the victory over Ulti with Nami
Chopper: 100B -> 200B/ 200.000.100B
Two options:
Oda keeps the gag
Oda is finally giving Chopper the credit he deserves and he'll at least recive the general boost of 200 million berry
I bet on the former