This comes from a very reliable source -- friend who is working production inside the Hampton Coliseum. Apparently, Phish played a mock show for about 20 people, all working personnel, inside the Mothership today, and we have the exclusive setlist:
46 Days --> Pebbles and Marbles, Down with Disease, Possum --> Carini, Taste, Seven Below --> Fast Enough for You
Mike's Song --> Harry Hood, Waste, Ya Mar, Chalkdust Torture, Stash
This was a full-on dress rehearsal with a light show included. Checking the International House of ZZYZX website, this is the first time Mike's Song has ever segued into Harry Hood. Nice!
Also, here is a great story in the New York Times about the Phish reunion, and in fact it mentions the Stash played at rehearsal. And here are the photos from the dress rehearsal at Hampton as taken by Jay Paul for the New York Times.
Apparently, they've gone back to their original stage setup with Fishman's drum kit over on the right. That's a nice little surprise!