25 Feb 11
22 Dec 14 6:07 am
You can leave your domain name as is. They are not as relevant as before. What matters is that your site is ranking for its target keywords.
If you do want to change the domain name to something " brand-able " then you can change the domain name. But you have to make sure you do it properly. Redirects needs to be applied to all your links to make sure they point to the same pages on your new domain.
Hope that helps. Have a good day!