Don't worry. Nothing is happening.
There are about 50 different ways to skin the cat in terms of "improving" Yggy. All have different cost points, risks to development (esp. high quality transformers), risks to reliability, differences in sound, ease (tube diff amp + caps would be easiest, and might even be better than FET), which platform to use = eventual size - not sure if people would want a DAC the size of a small fridge (and if Anax wants one, he's on his own.) In then end, it might not sound much better.
I could make EC Marvizator 4, 5, 7, 8, 9, and 10 and make you fuckers pay for all of it along the way. But I'm not.
The problem is audiophilia. Once you hear something better, even it is in one or two aspects.