There's now a 2015 copyright Harrah's/Caesars Ent. Total Rewards card out with C4-4370007 on the back. Last 2014 cards had C3-4370007.

No one has seen a new Platinum card yet but please let me know and/or send scans if you do see one.

Supposedly Harrah's is changing to a totally new cards sometime soon from what I'm hearing but no hint on what they're going to look like.