An Incomparable-sized carrier in treaty negotiations

Would an Incomparable-sized Royal Navy carrier become the treaty standard?

If completed before the treaties, she might define carrier limits or receive a special exception while still serving as the reference point for every other design.

Negotiators would have to choose between making the giant carrier the normal ceiling and treating her like Hood as an exception. Either way, her existence would anchor the discussion and likely push later carrier standards upward.