I've been through the whole process. When you release a VIN, they will typically put your account on hold for 3-5 days to let the VIN flush from the system. I tried to rush the process to get back in the queue quicker, and after a day I got matched to my same old VIN again. After that I was patient and waited for the VIN to find a new home.
As it sits now, I released a VIN on 12/11 and my EDD is 02/14-03/14. No new VIN. Not sure that releasing a VIN gives you any priority over other orders - I think you just get put back in the queue. I've also run up against the start of my EDD only to have it push out again. It's happened so many times that I ran out of space for the history in my signature - hence the "what a long strange trip..." I've learned to be patient - sorta... with occasional bursts of frustration by venting on this forum. But this AMD/Intel thing is stressing me out! LOL. As long as my car has wheels and no huge dents, I'll pretty much take it at this point.