We reported last week that WWE would be introducing their new WWE logo after SummerSlam. They’ve also ordered all new belts with the new logo. Dave Meltzer also confirmed the reports about the big gold belt being retired. When Cena gave Flair the World title belt that was considered to be the symbolic retirement of the belt. That belt is most associated with Flair since he dominated the 1980s as NWA champion. The current WWE title will be replaced when the new one is introduced.
I believe Hulk Hogan actually owns the original NWA big gold belt. It’s the one that was spray painted with the NWO logo and is bent on top and he took it with him when he left the company at Bash at the Beach 2000.