From what I understand, ENS is less than one year old at the time of this post. So, it follows that no domain has expired for any owner. No person has experience renewing the rights to their ENS domain.
Do expired domains go back into the auction like the first owner of the domain had to win in the first place? Or is there a first right for the current owner of a domain has to extend the expiration out for as many years into the future as he is willing to pay?
I am afraid to make the mistake that my free association understanding of what I imagine the process should be is not actually the case in the real world. I'm afraid to use ENS because I see no confirmation that I have a means to keep the domain after it expires. I am concerned that if I have a good domain then it is very easy to lose that domain at the expiration date.
Are there any sources available that address these concerns?