Shhhhhh. Don't tell anyone, but my deep throat source says a fully discrete, fully balanced Nexus and Continuity-based clock radio with high-precision time crystal. And the numeric display will be made up of patented white LED matrix that eschews light-pipes therefore basking the entire room in an intense white light to ensure that one wakes up on time by never allowing them to go to sleep. (Imagine 144 Magni 3s (not +) powered on in your bedroom room))
OK -- seriously. Jason has pretty much stated there will not be any replacement of Yggdrasil in the foreseeable future. They will continue to develop and offer modular upgrades, but so-far as a whole-sale re-thinking of that DAC -- not likely. They want to honor the investment made by those that have purchased an Yggdrasil. Plus, I'm sure it still has plenty of legs left.
Gungnir, on the other hand? Crickets from Schiit, IIRC. That usually means something is up.