Last night I was told after Raw that the big gold belt had been retired and is now property of Ric Flair since it was given to him as a gift. Apparently Flair did not leave the building with the belt and gave it back to WWE.
One thing to note though is that the belt is now listed on the WWE.com site under retired championships so that confirms what I heard last night. They can always change their mind and bring it back but officially the belt is considered to be retired as of now. You can see the list of retired championships by clicking here.