I know channelling audio over the WiFi might be pushing things a little too much, but it would certainly make for convenience if the audio for the selected cue (or channel/output) could be available from the earphone output of the device.
This would reduce the recording clutter, and the hardware in the device is otherwise unused.
If necessary, to limit bandwidth when using high project sample rates or all cues, the cue audio could be dropped to 16bit 44.1k, or a compressed format.