There's a bunch of medic weapons in the beta:
The Beta Bonesaw
- Allows you to see an enemy's health
The Beta Quick-Fix
- UberCharge increases healing by 300% and grants immunity to movement-impairing effects
- +40% heal rate
- +40% UberCharge rate
- Can't overheal.
- Move at the speed of any faster heal target.
The Beta Syringe Gun
- -10% damage done
- UberCharge percentage increases movement speed by up to 10%
Probably won't be the actual unlocks, but then again, there are sniper beta weapons that are exactly the same as the new sniper unlocks.