Last official operating day for Cantina is Saturday (1/4). Doc Brown's official last operating day is Sunday (1/5). Walls go up around both locations (seating area as well?) on Monday for demolition.
Fried chicken will be sold out of Mel's Diner after it comes out of a refurb that'll start around the same time. Mel's will need to be reconfigured to accommodate all of the fryers.