The problem with this is Zoan and Paramecia awakenings are clearly different. Paramecia's are enhanced attacks or abilities that affect the environment or target. Zoan awakenings (by Kaido's definition) are obvious/complete transformations.
Luffy, being a mythical zoan, has both Paramecia and Zoan traits (he transforms, strengthens his rubber abilities and can transform the environment and victim into rubber).
By this affect, Kaido really should have another major form like Luffy. Not a "susanoo" like armor where he has the same dragon form. Not a temporary transformation he uses sometimes when he makes big attacks. None of these fit what Luffy does.
This is why it's jarring that we haven't seen anything yet from him, or even if we will at all. He really "should" have exactly what Luffy has being a zoan user that has defined Luffy's own Awakening.