Is a skin for Sion in the post-rework era in the works?

Hello,

Having now been through a number of reworks of different sizes since the Sion rework, I have been impressed with the art and skin teams' work in rebranding the champions affected by them. Sion's base model and VO are amazing quality, Tristana's new model and VO better capture her explosive personality, Captain Fortune is a fine skin to showcase the VU she got, and Gangplank's execution was stellar, with a new skin for people that want to have a throwback Gangplank still managing to be aligned with the new kit rather than the old one.

The question I have, is where a new Sion skin is in the works, if at all? And secondarily, if so, about how long might it be until such a skin is available? Having not had one since his update seems odd, since much smaller updates have been packaged with skins (MF and GP spring to mind, Fiora and Darius recently got reworks and skins as well). It seems to me that the naming convention for rework scale (Sion-level) is in need of a skin to show off his new kit and awesome... well, everything. I am underwhelmed by the existing skins for Sion, probably in part because they were created for the old Sion, and in part because the new base model is so amazing. That's definitely a testament to how great the teams did with the rework, but it isn't encouraging for my potential to buy a skin. I, and a number of others, would quickly purchase a skin that is representative of Sion's current state. It seems like he is in a good place for one as well, with a reasonable representation this year in competitive leagues and a limited and outdated pool of existing skins.

For what it's worth, I would absolutely throw money at a Train Conductor Sion skin similar to the one in the linked reddit thread below.

https://www.reddit.com/r/leagueoflegends/comments/2yk6d2/train_conductor_sion/