fix-the-spade said:
Valve only announced that the Sniper was next a few days ago. It'' be at least a month/couple of months before anything actually materialises (beyond that Jarate poster which may or may not be real ).
Be patient.
The Jarate poster hints that the sniper's new second slot weapon will involve throwing his own urine at the enemy.
The Jarate poster was unveiled on April the First.
I'd say there's a pretty high chance that's not going to be happening then...
As for 12-man sniper teams in the days after the update, that will be a little annoying for a while, but hey, as Scott said, play the spy and take advantage. Personally, I still have achievements for the Medic, Pyro, Heavy AND Scout that need unlocking, so I'm in no hurry to grind the Sniper too.