When you eventually change/rework Jax...
Don't take away his duelist playstyle. Don't change his kit to be more caster based, like you did to Irelia and Aatrox. Ever since the Jax changes long ago, Jax was certified as a duelist and a fighter that likes to be up in the enemy's face and auto attack. DON'T TAKE THAT AWAY JUST BECAUSE HIS KIT IS SIMPLE, or just because his core damage is auto attacks. Specializing in auto attacks should be kept in the game, however the Irelia/Aatrox reworks are speaking otherwise, which is concerning me.
ᵃˡˢᵒ ᵈᵒⁿ'ᵗ ᶜʰᵃⁿᵍᵉ ʰᶦˢ ᵗᶦᵗˡᵉ, ᵀʰᵉ ᴳʳᵃⁿᵈᵐᵃˢᵗᵉʳ ᵒᶠ ᴬʳᵐˢ. ᶦᵗ ˢᵘᶦᵗˢ ʰᶦᵐ.
simple kit that fits his theme, that's all