[2021] When will World War II tanks be separated from modern cold war tanks?

I did not heard on such plans.

There is no easy way to fairly separate vehicles from WW2 and Cold War.

What should we use for a split line? End of WW2 in Europe? On Pacific?

Even if we decided on one, what next? What is WW2 vehicle? Machine that has been in combat during WW2? Build? Tested? Started but not finished? Prototype? If you decide to check, you will notice that many Cold War machines started to be developed in WW2. Many Cold War vehicles were designed during Cold War but with WW2 mindset.

Even theoretically simple task to separate them is complicated and c