Nothing changed in six years doesn't make it sound like a priority. Could they change them? Sure. Would it be the feared Procopalypse? No.
Procs are mainly used in two ways:
A way to give some pop to low damage scale powers on Defenders, Corruptors, et al.
A way for high end players to get high rewards for high risk
Procs have one big problem:
They're horrifically unintuitive. If you need a spreadsheet to figure out how often they fire without even knowing if they'll be useful to begin with because psuedopet shenanigans, that's a problem. I can click on a power to see how much average damage it does with enhancements. It won't tell me how often my proc is gonna fire - or if it will fire. That's no bueno.
Again, there's no reason in the above to nerf procs. The problem is making them easier to understand, and I'm not intuitive enough with the code to figure out if the server melts into a slagheap if you try to put it in the power info. Or you can include global recharge but that's a whole new can o' worms.
That tanker damage scales have been changed and not anyone else sounds to me like that any balance pass wouldn't buff damage scales. Defenders certainly aren't going to get blaster scales out of their secondary. Thus, procs are staying.