I wouldn't like to say, the fact that he's about to make the production molds is the biggest step forward in a while (after all, it's a small company). You could try asking his Facebook page but I suspect the answer is "as soon as they're done".
I'm hoping that his usual UK outlet (Great Escape Games) will have some as soon as they're ready - or they can get them - or perhaps have some by the time Salute rolls around.