I already mentioned that, i don't think Dragon is a DF User anymore
Why would Oda hide such a Fruit for Decades?
He revealed DFs of every single Character from Pre-TS (Admirals, Warlords, Sengoku/Tsuru, WB, Ace, Magellan/Enel ... etc)
Why still hide Dragon's DF? Wind isn't something that stand out from all those crazy DFs we seen so far
Imo Oda is hiding it cuz the source of that power isn't DFs, Dragon is just a Shaman who gained access to the wind.
I believe if Someone is very powerful, they can make their Haoshoku Haki mix with the air & they can control the wind & also the weather.
Everything i've seen so far in Grand Line suggests that the Weather is Man-Controlled not Natural
Only Two Top Tiers that SHs encountered in East Blue were Mihawk & Dragon, One looks Religious & other looks like a Shaman.
And both were heavily associated with Storms & thousand Chapters later, They are only two without any Power Reveal, this isn't coincidence
Mihawk & Dragon probably are related to Sea God or something, their Threat doesn't come from Simple Training or Powerful Haki.
Even Luffy's Attacks are named after all sorts of weapons & tools, yet his Most Powerful Technique is "Storm"
So Luffy's Fighting Style already reveals that Peak Power is "Storms"
And Law threatened Doffy by saying "D. will bring another Storm"
And Dorry/Brogy did mention before in Little Garden Arc that "God of Elbaf" (Whose Name is also Elbaf) grants Divine Protection to whoever He wishes to Win, so the concept does exist since first arcs
And literally in next Arc, Crocodile was like: "I stabbed you, buried you, turned you into a mummy, poisoned you & yet you can still Fight, how?!". How was Luffy able to come back from a Deadly Poison even though we literally saw him unable to even move because of it, and conveniently he uses an Attack called "Storm"
Someone has most Powerful Haki in OPVerse that is Global & Mihawk/Dragon have favors with this guy.