Feed the poor
Don't do this. Let the people that have strived to establish a name for themselves keep their glory. Don't strip that away from them by forcing extravagant fees and the possibility of losing their empire to a clause. Verisign is the most trusted and well established company on the internet, what would happen if someone took advantage of their expired renewal. It is like telling someone that their is a possibility of losing their child in a few years due to the fact that other people don't have any children. Verisign keep the good name that you've built. We look to you for trust. Thank you.