The feed still goes to the desk, I wouldn't bypass and go direct to the power amps. It's all hypothetical anyway, my originals days are done with.
I'd happily do both tbf, my mixer running our in ears on stage instead of wedges or amps/cabs and di out to the sound crew to do as they please, which given no amps to bleed into mics and no vocal monitors to cause feedback into the mics I think they'd be very happy!