From their announcement:
Finally our Austrians are on release (Hurrah) Sorry for the delays as we know many of you have been waiting for these from the amount of emails we have received!
Orders will start shipping 6th September as stocks are built up at the factory.
We have added them to the shopping cart so you can buy them individually, or in one of our really great value 3, 5, 7, or 10 box deals. These are a great way to get masses of Austrians on the table without spending a fortune.
We have only just received all the final sprues so images will appear on the site over the next few days of the Grenadiers, Landwehr and infantry in shako’s.
See their shop here