Wouldn’t be opposed to this happening as well. It’s the last source of Elemental Retaliation left, though the amount it provides (1850) is pretty high for one item so maybe it would also get lowered to compensate for merging 3 damage types into 1. I can see the 500 Elemental Retaliation to Mirror staying at 500 but getting changed to Fire though.
Arcane Empowerment used to provide Elemental Retaliation as well but was changed to Fire so not out the question for Turrion to follow suit.