@Riot which champions are on radar for reworks, and in what approximate order?

Hey Riot, I'm just wondering if you (or anyone) knows which champions are being looked at right now in either terms of a complete visual and gameplay overhaul or just one of those two, and which ones are being rushed before others.

I know that Cassiopeia, Mordekaiser, and Taric are on the radar, but is there anybody else? And who is being "fasttracked" ahead of the others? Is Mundo in your field of vision? Because he seems like he really needs it. That Q feels massively outdated. I want to play him, but I don't see how he can actually finish someone off. Mundo may go where he pleases, but he can't do sh*t once he gets there.