I wouldn't mind if they decided every know and then to have a cross realm guild competition, but to change guild warfare like that is plain stupid. You'll effectively cause every one of those new servers to die in no time as only a small portion have a chance at anything. Ya sure currently it's basically 1 guild from each realm holding everything, but that's 5 different guilds as compared to 1. Assuming a lvl 8 guild is the max, you got 500 people who can reap the benefits, also assuming you dont let alts in, as compared to the 100 that your new system provides.