Jhin has been shoehorned into being Ionian.
...and it's pretty obvious he was meant to be a Piltover champ instead.
For one his visuals don't match Ionia at all. There aren't any hints of visual symbolism of eastern influences or mysticism. Or the physical threat of martial prowess either. A Red during the Q&A insists that his limbs aren't prosthetic but rather a body suit and armor plates on his extremely lithe body. Despite this another Red claims they were designed as mechanical and his base model and splash clearly shows this. http://i.imgur.com/IJK2WGK.jpg https://i.gyazo.com/71381f9388edd6ee1c147e2c35943115.jpg Up until now Ionia had no hints of Hextechnology whatsoever but with Jhin's bio lore a throwaway line about an armory appears to explain it away.
Yeah, I don't buy it.
What Jhin instead has is the hallmarks a Piltover champ. The white enamel, gold metals, and accent color schemes. The classic masqueraded mask that echos the same style borrowed for the steampunk/hextech aesthetic of piltover. The scroll designs all over Jhin that can be found on both Caitlyn's gun and Orianna's metalwork. Look at all three and tell me that they don't come from the same place. http://news.cdn.leagueoflegends.com/public/images/pages/2016/january/jhin/img/jhin-wallpaper.jpg https://ddragon.leagueoflegends.com/cdn/img/champion/splash/Caitlyn_0.jpg https://ddragon.leagueoflegends.com/cdn/img/champion/splash/Orianna_0.jpg
Their stories were obviously meant to be related. And I know it's been brought up on Reddit before but Jhin would have/should have been Orianna's father and maker, Corin Revick. Jhin's fixation on death and art is mirrored in Orianna being a killing machine through dance. Jhin/Corin would be the perfect rival as Caitlyn's, "C". A twisted mirror of Caityln as a hextech enhanced sniper to challenge her own prodigious skills. Leading Caitlyn in the perfect performance piece as revenge for her failing to protect his daughter. Corin taking up the mantle of artist to finish the performance his daughter never can.
The only reason I can come up with why they hamfisted Jhin as Ionian is to give Shen a lore update/progression with his visual and gameplay update. Red's have said in the past that they'll bundle content "packages/products" when they can. If I had to guess I'd say that manager somewhere noticed that the next champion update would arrive very close to the same time a the new champion release and wouldn't it be great if they could fudge the content to fit in so they could prop up each others' releases and recreate the brilliance of the Burningtides Update! Cross promotion and product synergy and all that corporate BS. I'd stake money that they sacrificed thematic cohesion and lore quality to make it happen. I mean they haven't even released either Shen's or Jhin's full new lores despite both of them being officially released to the public. What's the hold up? Unless the lore team is trying to cobble together something that was never meant to be together in the first place.
I feel bad for Lore team, I really do. You can see that they had a plan and sparks of brilliance are allover Jhin's design and theme. But they had to scrap a lot of that for something else that just isn't up to the quality and creative standards they they just set and now dipping back below. Its a shame really; I would have loved to seen and experienced the original story instead.