Aged / Youthful Skins

I always wondered what champions looked like if they got older, or what they looked like when they were younger.

Like a Youthful Zilean Skin, when he was in his 20's / 30's, or a Younger Swain and Gangplank.

Or even an Older Annie, Ekko, and Ezreal or even an Older Riven skin.

But they are just ideas, Upvote if you think it would be pretty cool.