I would love to see an integrated DAC + Headphone AMP combo based on the AKM4499 chip.
It should be similar to the ZD3:
inputs:
USB
Optical
HDMI
Bluetooth
Coax
outputs:
back:
XLR balanced
RCA
front:
3.5mm SE
4.4mm balanced
6.3mm
Similar to the ZD3, it should support swappable op amps...