Yeah, but you are talking about some secondary details (the fruit of a Tobi Roppo, a normal Wolf for Jabra that was introduced a L
lifetime ago, and about that I have no qualms, etc.).
Here we are talking about a whole arc based on two Dragons that we saw far and wide, with Zoro, if you want, that has already cut a "a dragon" three times: at PH, Kaido and "King's dragon".
On the other hand, I can offer the example of ID: the "mythical" beasts of ID were used, well, in ID and so, sadly, we didn't get any Mythical zoan based on those creatures.
As much as I would love the eastern Dragon, I think it's written in stone that Dragon has the Wind Logia.
Aside from visual proofs, the guy uses a lot of expressions like "Wind of change" and alike and his ship Is even called "Wind Granma".
And so on.
Oh, and he Is an ex marine, and Oda usually gives Logia to important Marines.