I don't know the scheduled dates of the packs, but I know that they are alternating between old arcs and post-Sabaody arcs, like Artur has posted on the other topic:
BP1: (East Blue) "Usopp, Sanji, Zeff, Mihawk, etc…" (we also know Krieg, Gin and Kuro are appearing)
BP2: (Supernovae) "Bege, Bonnie, Kid, Apoo, Drake, Urouge, Killer, Law, Rayleigh, etc…"
BP3: (Arlong Park) "Nami, Arlong, Tashigi, Smoker, Dragon etc…"
BP4: (Impel Down) "Pacifista, Akainu, etc…"
BP5: (Alabasta) "Chopper, Dr. Kureha, Vivi, etc…"
BP6: (Whitebeard Pirates) "Whitebeard, Marco, Ace, Sabo, etc…"
BP7: (Baroque Works) "Crocodile, Nico Robin, Bon Clay, etc…"
BP8: (Fishman Island) "Shirahoshi, Megalo, Koala, etc…"
BP9: (Skypiea) "Enel, etc…" BP10: (New Fishman Pirates) No information found on amazon listing
As you can see, Bonney will come soon (BP2), and Kinnemon will probably arrive in BP12 or BP14 (don't know when is that, though)… but we're far from Carrot and Pudding, especially because some arcs may need multiple packs, like Dressrosa.
All that said, if the next Strawhat is already an existing character in the story, but their card comes before their time joining the crew, I'm not sure if Oda will want to spoil the information with their number.