Latest card from the Grand Casino in Shawnee, OK says Gold Rewards 10K with stacks of gold bars and 2014 printed on the front. Not sure yet if other levels exist, please let me know and/or send scans if you come across any other levels.

Scans of the new card are on the ChipGuide already
http://themogh.org/cgupdate/cg_showpic.php?pic=../cg_pix/ok/121820.jpg&picr=../cg_pix/ok/121820a.jpg