That's a feature I'd also like to have.
It's pretty common in my band to know that we have a finish time dead-line (usually due to environmental noise restriction rules at the venue) and so we usually have a final set that is a few songs too long in case we decide to skip a song here or there. Ultimately, as we get to about 15 mins before cut-off, we have to make a call on which songs we will play, and which we will cut.
Having that End Time Display for current Playlist for ALL devices (not just Host device) would better facilitate that band conversation.