Love the concept, realy realy do.
I mean when I say this tho, with the community league of legends have, and the creativity of the people, Riot should have no problems getting more ideas for skins for champions.
Saying that, I also state that if this would be a skin in the future, I wouldnt expect it anytime soon
Since there are just too many ideas flying about, like the Construction Worker Yorick im eagerly hoping Riot will make, be it legendary or ultimate.
Keep up all the hard work, love the masterpiece regardless it if it dosnt appear on the Feature skin sale on league