NAV 2011 Classic Subscription Renewal...

A couple of questions:

 

1. Is NAV Classic version still sold separately or only available to current subscribers?  And will there be a NAV Classic 2012?

 

2. To renew my NAV Classic subscription, can I use a product key from any NAV (or other Symantec product) package or version, i.e., standard NAV, older NAV version or even NAV sold in other countries?  To expand on this, if I find a NAV (any flavor) on sale, can I buy this package and use the product key from same to renew my current NAV Classic 2011 subscription?

 

Thanks!