Nah can be. After all Oda would do something like that especially characters on enemy side that are rivals.
That's a fan theory thinking there will be a trick in their bounties to mimick zoro and sanji's current bounties but the thing is it certainly isn't a "must" lol
What about theories which said shilliew will have diamond diamond fruit and will kill mihawk? That didn't age well
Fans have expectations and in this case that theory is based on nothing solid and still at the stage of fanfiction because even those matchups aren't certain and many seem to gloss over that.
The only certain fight is luffy vs kaido so the logic behind the "1.33 billion bounty" for king has no solid evidence.
I beleive king's bounty will at the very least be 1.4 billion,if not current luffy's bounty.