I recently watched The Legend of Prince Valiant cartoon for the first time since I was a kid, and I became inspired to create my own vision for a Valiant reboot (which would be soooo cool).
That said, if you could keep even half of the violence from the original series in this day and age, it would be a bloody miracle.
p.s. If you're unfamiliar with the original cartoon, I strongly recommend you at the very least check out the intro music. Quite possibly one of the most awesome power ballad ever created.