In my experience, with a lot of websites the "Out of Stock, resupply within XXX Days" is not really reliable. I have seen dozens of knives that are long gone discontinued, but still display as "Resupply within XXX days".
In regard to the San Mai Trail Master, I was on the side of the fence that believed they were going to be discontinued. However, if I'm not mistaken someone here not long ago posted a photo of a San Mai Trail master with the NEW Cold Steel logo on the blade. It was very surprising to see that.
Maybe they aren't being discontinued? Who knows at this point? GSM probably doesn't know either, lol.