I am hopeful that the Pyrokinetic Fiery Battle Axe icon as well as the Aerotheurge one which looks like the guy is holding a sword (Although on closer inspection it does look like he is evading it) are elemental weapon enhancement skills (I absolutely love the idea of the Huntsman's Elemental Arrows Skill, was hoping there would be a melee equivalent)
If the Battle Axe one is a Weapon enhancement skill then you could (Along with the Fire whip skill they have demonstrated in trailers and updates and Ambidextrous Talent) theoretically create a sort of Fiery gladiator build.
Looking forward to opening up GM mode just to see all the skills and seeing what sort of class combos I can create (as I don't mind spoiling myself on skills)