@Rioters: Ryze Rework Update?

I'm posting this in the hopes of catching a Rioter's attention:

When I started playing LOL a few months ago, I learned the game on Ryze, and even though I haven't played him much since his nerfs, I still love the champion. Another Rioter posted a few weeks ago on these boards that Ryze was in the early stages of a rework, but no one has talked about it at all since then, as far as I know.

Is there anything you can share yet about the rework? I'm sure a lot has yet to be decided, but maybe you can answer this question: how big of a project is the Ryze rework going to be? Are we talking about a relatively smallish game play rework, like Maokai? Or a whole new kit, like Sion? Or somewhere in between? Or is that still up in the air?