In Vetex’s most recent statement he didn’t mention Warriors being able to use them.
I think it would be redundant anyway since they already have pseudo-arcanium weapons like the Sunken Sword and Triasta of Bronze that inflict magic status effects. I don’t know how you would even differentiate those from actual arcanium weapons when it’s Warriors using them. It’s not like they can use altered spells, or change which magic the weapon is using.