Most sanctions that could be imposed have not been imposed yet. The indirect effects of current banking sanctions have made it almost impossible to do business with Russia though.
I have many Russian customers, but neither my Chinese nor UAE banks will accept any transfers from Russia (not to even mention western banks). My business is not directly affected by sanctions, the banks just don’t have sufficient risk appetite to touch Russian money.
Best offer I’ve seen was from a partner which offered to take Russian transfers to a Kyrgyzstani bank account and send me USDT.
Perhaps such sanctions would be unnecessary? Perhaps they’re just on the way.