A larger issue than people not wanting Vel'Koz reworked...
Is that the playerbase doesn't seem to trust Riot to even think about it.
While I am of the personal belief that Vel'Koz doesn't need to be touched and there are champions in greater need of fine tuning, I find it interesting that most players (from what I've seen) feel that Vel'Koz will be worse off if he receives changes.
Now, I understand the belief is that if he is changed by Riot he will be in a worse or misaligned position (see Morde, Cass, Karma etc) what can Riot do in order to alleviate those concerns? Often times players are faced with Riot telling them what the changes will be and are surprised when they recieve overwhelming negative feedback from players and (unless it's Lee Sin) will go through with the changes anyway. This is useually because the changes are discussed with players early enough, resources are locked in or different projects are scheduled and more time can't be spent revisiting the champion rework. Riot is asking for input now and that looks like a shift in the right direction but I challenge them to give us feedback as well. Tell us plans BEFORE they're locked in. Let the players discuss the pros and cons with you. It seems like that would be a potentially powerful solution sinc the Dev team has admitted to often misunderstanding what players like about a champ.
So talk to us, Riot. Don't just ask for feedback, start a conversation early, before it's too late. Play ball with your players :)
EDIT: A lot of the discussion seems to be aimed at Vel'Koz specifically. I am more invested in Vel'koz than the other mages being touched so I might have talked about him more specifically, but I made this thread with the intent of discussing how Riot can avoid misalignment with reworks by starting an early TWO WAY dialogue with players about what changes they want to make before they're locked in.
. They have nerfed this champion for about 15 patches in a row now, and they cant balance it. If something needs changing, go ahead and fuck it up then fix it. But don't try to fix something that isnt broken 
was truly my shit god dammit.
to have almost the same effect.