Well... pre-BC, right at the end of Classic Warcraft.
Every class could either one-shot or two-shot any other class.

I don't think we will again get to the point where any geared toon will automatically win against any other geared toon (every time), because they pushed their initial attack key first.
Sure a given class might have an overpowered ability, which makes them a threat to drop someone fast.
But I don't see <insert weakest pvp class in the game> automatically winning against <insert the class hardest for them to drop> because they pushed "1" first... which is how late classic wow was for anyone with raid gear and a decent weapon.