Hi,
I made a guess about icons on official website and gave it a color 🙂
https://imgur.com/fWMb7rA
I hope img is visible.
Why this icon?
it has weapon in the icon, only warrior's both especs had weapon in the icons
style is very the same, weapon in the middle, extra mechanics on the sides (zerker - fire, sb - protective barrier)
Ok, so it's bullet, because warrior profession has rifle already, I think it'll be a pistol.
About extra mechanics on sides:
they're might be arrows - so maybe dashy spec
broken walls, barrier - heavy dps, penetration shooter spec
air, cantha's wind spec
Many proffesions in the past got support especs like chronomancer, scourge, firebrand.
So my last thought about it - it's gonna be supportive windy pistol spec for warrior.