I bought the last one from Kevin in middle May this year. It's still in the original packaging unused. Kind of disheartening to hear or what it seems to me, that Kevin getting out of the DIY business after I made the purchase weeks earlier (casue I wanted to run 4 identical).
I don't think they will make a comeback and if they did, at the time I asked Kevin, he said the only changes will be cosmetic. Hit me a PM if interested.