As far as I know JW Blue is a "standard" brand i.e. one that will be bottled every year although in smallish numbers although these numbers may, or most probably will, increase over the years. Most companies talk about "small runs" which normally means they only have a limited amount of whisky to bottle currently but as each year goes by they will bottle more and more.
If you want limited editions then look for those special bottlings that say something like "bottle number 123 of 1234" then you know that there will only be that number of bottles available. If you Google Laphroaig Cairdeas 30 Year Old you will see what I mean