To be fair, the new Devialet range was "signalled" on a website and in HiFi News about a month before Munich, and you have only been able to get the new models one month post Munich. So effectively two months' notice not to buy a D-Premier if you wanted a 240 (or 170 or 110).
The somewhat reflective clarification by Devialet, that "I am ready to bet that very few people can make the difference between a D-Premier and a D240" hopefully nulls the initial bluster which gave the impression that the D-Premier was obsolete, which was always a complete nonsense.
The dealer in Oxford is still calling it " Radically Updated "