Wow if STS can pull this off successfully it could make PL an unbelievable gaming experience! If you do I'll definatley play pvp more, all these ideas are amazing!
Not sure if it was mentioned, but what about all out wars between clans? Groups more than four, let's push the boat and say make it a hundred.. Know that's a stretch as most rooms don't take more than 24, but I'm just suggesting ;-) 50v50 with terrain, obstacles and places to jump out on your opponents could be a lot of fun lol