Change it so enemy players cannot enter your nation's respawn/safe zone in castle and snow war. I always find it stupid when a player sneaks a priest into the opposing nation's safe zone then uses it to buff/ress fallen attackers and there's nothing the other nation can do about it.
Also would be nice if a potion shop is added in the safe zone (only the nation the safe zone belongs to can use it) so that players can repot without having to go back to town. More pvp action = more fun, right?