I found this article interesting when I found it linked in a mail I got today.
It talks about people with spiffed out end gear and how that might matter now, but may not matter as much when it comes to node and region wars when they are added. The best note is that if you fight for a region, your guild also can't own a node. Now HUGE guilds with multiple guilds can pull that off, but ONE guild cannot both own a region and a node. So even the big guys get argue about which guild of their "empire" actually holds a regions and who gets to handle nodes. Time will only tell how this really works, but it should be interesting!
NOTE: I know a few of our guild are leveling and gearing fairly well. I've started getting stuff to figure it out. It really isn't that hard, just bloody time consuming and has its ups and downs to get to the +15.