...... I have visited the boutique four times in less than a year (which is about 5 hours to drive each way).
They know what I want, they know I'm committed to the brand but they cannot tell me when what I want arrives.
I'm afraid that there is simply no certain answer to your question. Due to the shortage of the product and a huge interest across the globe you'll just have to be patient .....and eventually they will call you .
If you keep persistent with the boutique perhaps they can at least give you some rough idea of timing but I doubt that you are going to get a meaningful answer from members here because each individual situation is different.