As I've mentioned before, there has been a steady and noticeable improvement in quality as our capabilities, staff and resources have increased. I think it's safe to say that indeed, many older skins don't hold up to the current quality bar. Whether or not they are revisited will be based on a discussion to ascertain how best to reconcile the quality and what the costs/benefits behind overhauls/reworks/additions are.
I can't at the moment shed any light. I can however discuss with the team if and how reconciling the quality may happen. Again, I can't guarantee anything but I can do my best to look into it.
Like when I'm at work and I see a student who is struggling with his homework, I don't wait until he tells me to help him... I realize that he needs help and I try to figure out how to solve the issue.