Quote Originally Posted by Cinno View Post
This isn't even an issue.
It can be an issue because even if you assume that people do not switch roles for long, you still need to retain the players as a whole. Even if you take out the possibility of any role population becoming more or less via role distribution, one of the roles might simply get bored (from years of the same jobs) and quit due to that.
Plus, there are ambivalent edge cases - classic example would be the guy who gears DRK second to get some swift queues when needed but doesn't usually play it in all other content.

So yeah, I can see tanks and healers becoming less an issue. But it's a bit early to see just how big that effect will be.