Worstgen
Since beating Kaido wont be a single individual effort but combined strength (of Luffy and Zoro very likely), there will still be doubts left for Luffy and Zoro to be Yonko Levels, then when will they both be accepted as actual Yonko Level ?
if SHs go against BBP then
for sure Luffy beating Teach will make Luffy Yonko Level
but whoever Beats Aokiji also must be considered Yonko level, since Aokiji ~ Akainu, who is accepted by most as Yonko level character, and beating Aokiji means being equal to Akainu (since Akainu beat Aokiji in most extreme difficulty of 10 days fight)
So if its Zoro beating Aokiji, there shouldnt be any doubts left that Zoro will be Yonko Level after that....
after that who will be their opponents ? to make them be acknowledged as ones surpassing Yonko Level
For Luffy it could be Imu since Akainu level was already reached by Zoro
and for Zoro if he fights Mihawk after Aokiji then, safe to Say Mihawk >~ Akainu and Aokiji (Mihawk > Shanks was already known)
and so it will also mean Mihawk >~ Top Yonko
if SHs go against BBP then
for sure Luffy beating Teach will make Luffy Yonko Level
but whoever Beats Aokiji also must be considered Yonko level, since Aokiji ~ Akainu, who is accepted by most as Yonko level character, and beating Aokiji means being equal to Akainu (since Akainu beat Aokiji in most extreme difficulty of 10 days fight)
So if its Zoro beating Aokiji, there shouldnt be any doubts left that Zoro will be Yonko Level after that....
after that who will be their opponents ? to make them be acknowledged as ones surpassing Yonko Level
For Luffy it could be Imu since Akainu level was already reached by Zoro
and for Zoro if he fights Mihawk after Aokiji then, safe to Say Mihawk >~ Akainu and Aokiji (Mihawk > Shanks was already known)
and so it will also mean Mihawk >~ Top Yonko