Are any of the people who created Lux still working at Riot?

I know Shurelia left a while back. There was also someone (Katertot, according to the wiki) that made a fan art that influenced Lux's look prior to release, and was hired by Riot afterward.

But that's all I've got. I don't know how many others (let alone who) had a hand in Lux's art, lore, and character. I'm wondering who else was part of the equation, and if they're still at Riot. Anyone know?