Not really a set date but they all usually get officially launched at roughly the same time though, Italian kits a little later seeing as there season starts later.
We got a possible leak on the website which could be an illustration of the new away shirt, but from comments and also the fact they have a white away this season and the design seems really minimal i think it's more likely a training shirt.
Here it is if you haven't seen it
www.footballshirtculture.com/11/12-kits/juventus-11-12-nike-away-shirt-leaked.html
.jpg)
