You cannot do anything than looking for newer information about the model on the internet, and asking the local dealer continuously about when it can be ridden first.
Trust me, this is both a nightmare and a wonderful journey. It is like waiting at the end of a row, and it’s length is not known. The only thing that can give you a temporary boost is marking the days in your calendar every day. As you almost know every YouTube video about the model you want, you probably notice if there is a new one uploaded.
And you are waiting for the catharsis: the email, the ringing phone, or whatever that tells you that you should go to the local dealer to place your order.