There is actually one way to do it!, but you need 2600 RP.

Transfer your account to Latin America (north or south, it doesn't matter). Since ranked isn't yet available, the "elo" number appears above the ranked medal, just like it was in S2. I believe it will continue to be this way until they allow ranked and the league system reappears.

You need 2600 RP to transfer back to NA once you've done this.