User blog comment:Ghmorello/Chapter 923: In Soviet Russia, Dragon Rocks You/@comment-24850639-20181102162335/@comment-3507581-20181103002843

Right! He'd gonna need the Devil Fruit equivalent of Super Saiyan (maybe Awakening, because this Wiki states Devil Fruit users are seen as a different race altogether) and maybe the One Piece equivalent of Ultra Instinct.

If this one-sided battle has proven anything, is that the two-year training period only served to reach the level to challenge the New World to a certain degree. So how many time will they need to being able to cleansweep the New World rather easily?

And as one user said, the Admirals alone can't do anything to an entire Yonko crew, so the Warlords are need to even the odds if only just a bit.