Sadly, I don't think it is still being produced. I have marked R.I.P. accordingly.
While I haven't been able to find anything about it on the De Kuyper website, it does seem to still be widely available in the Netherlands. Which could mean that they're simply no longer selling/exporting it abroad or that they've stopped production and it's just a matter of selling off the last bottles shops have left or maybe it is something completely different. In the end it might make a return or it might not, just a waiting game at this point.