Etherscan would not be able to show the new coss tokens until after a tx has been made on the address.

The new ERC223 COSS-token address is 0x9e96604445ec19ffed9a5e8dd7b50a29c899a10c. Please make sure you have the new ERC-223 COSS Tokens.

You are required to re-enter the identifier in the smart contract after the fork. For instructions, please follow this tutorial: