Depends. Germany's looking at possibly building some fast ships in the 20-25,000 ton range, armed with 280mm guns. Certainly not a sure thing yet, but it's possible.....
Not to mention that without a scale attached, those ships could be heavy cruisers, per the CT. And of course non-signatories of the Treaty (such as Chile, Argentina, Turkey, Poland, etc) don't have to conform to it.