PR5 and PR4 Expired Domains

I'm withthisismymp3, submitting a review request even doesn't mean you lose age, it can be done for legitimate reasons, for example you build your first website, don't follow best practices, mess it up, fill it with duplicate content and google doesn't like it. If you clean it up, you can submit for reconsideration, what went before has no bearing on whether you get another chance or not, if it now meets guidelines they will accept it.

Hmmm... I'm really wondering about this now. If I did lose the PR5 and 4, I don't want to have also lost the age of the domain. I think an 8 year domain age is still a good advantage unless it is lost.