The subsitute choir/entertainment is only scheduled for daytime hours. D'Vine Voices is scheduled at the Fountain Stage at 1:15, 2:15, 3:15 and 4:15
In that case I go back to my statement that the whole plaza will look very dark and dreary this year. Especially compared to what MK and DHS are doing.
Guests are bound to notice and comment. One thing we return visitors can do is make sure as many of the first timers realize what is missing is the light display that decorated the plaza for the last decade. Tell them Disney cut it, even though they are making a profit, and the lights are now rusting away in a field in backstage. Fight corporate misjudgement with a little bad PR.