I'd like to see the Pyro's weapons. He has a lot of potential but at the moment I find him kinda underpowered and the weapon updates could make him much more versatile.
I want to see some sort of smokescreen gun. It would look like a small old fashioned woodstove on his back with a chimney that wraps around into his hands with a handle he raises to disperse smoke. It wouldn't do damage but it blinds foes, allowing the Pyro and teammates to go in for the kill with his shotgun- or even his axe.
It could block sentry view as well. With this weapon, you could destroy a well fortified sentry without the need of an uber (seeing as how the Critscreig doesn't grant invulnerability). With this weapon, Valve wouldn't need to create a smokebomb either.
If it seems to OP, maybe it could have a small clip size ( a 100 to the flamethrowers 200) or use ammo at a greater speed. The smoke could disperse faster from explosions to ensure soldiers could remain the Pyro's counter class.
Of course, if just smoke wouldn't cut it and a woodstove on the Pyro's back would seem too out of place, it could be replaced with a fire extinguisher. It doesn't neccessarily need to put out fires, but it does direct damage to foes and instead of burning them chills them, slowing them down. for all these pros the fire extinguishers one con could be the smaller and less effective smokescreen.
... but what would they do for the shotgun? flaming rounds? !dodge