I always though it would be cool if people could set their own claim areas to pvp or not. so if someone wanted to make a dungeon or fighting arena (area) they could then set their claim to pvp. Those that dont like pvp can just leave their claim areas set for nonpvp. Of course you would need to have an indicator on the screen telling you that you just walked into a pvp area.
I second this completely. I would want my server to be pve except for small arena areas that challenges can be settled in.