^ Manipulation of vegetation would be a fitting power for an emperor. Its destructive potential would be very high. Going by Big Mom's Jolly Roger, I won't be surprised at all if she possesses this ability.
And I've stated for some time now that Kaido will either have an ancient or mythical zoan ability. Personally, I would find it awesome if he can turn into a GARGOYLE. Such a vicious creature befits his cruel demeanor
.