It won't happen. Opers have nothing to do with channels. I for one really detest being drawn into channel matters so the last thing I need is to be forced to wear a mode prefix simply because I'm an oper. The other thing is opers can't have a mode prefix because no channel modes apply to them. Opers that want to make themselves available will always sit in #Help or the equivalent there-of. Opers that want to hide and either pretend not to be there or factually not be available will either just sit in channels (without ops) or just sit on Status Window.

When an oper uses /samode they then have the @ but only because at that time channel modes apply to them. I use this rarely though as opers can change all modes without ops or even from outside the channel.