This is very much along the lines of yet another FFXI system to implement. Surprised nobody has came in here yet to blow the horn on how this isn't FFXI. Great idea, though. The thing about the undead though is that during XI they were more of an obstacle to avoid so you can go places, xp at camps. etc. I'd really like to see the undead come back as a deterance. As with all your other great theories, I'd say when can we see this? I don't think the seasonal one is a big hit since the MMO revolves around a game day rather than a season. But as far as weather and all that? Hell yes. Again, good job.