Do wineries typically have predictable release dates?

I know that lots of wineries with mailing lists have regular offers, I guess I am wondering more about those that don’t do email offers. For example, I know about this time of year it’s time to be on the lookout for Produttori releases.

If anyone happens to have specifics, my next question, specifically, is when the Giuseppe Rinaldi 2015 Baroli are gonna be hitting the market.