It is not re-opening as a permanent restaurant. It's being opened temporarily (just for about 10 days), serving dinner family-style, to absorb some of the Easter crowds. Menu looks about the same as Liberty Tree.
TDC Nala is correct. They use Diamond Horshoe as an over flow restaurant during peak travel times and free dining. It is open currently because of Easter crowds.It serves either sandwiches or the same family style meal as LTT.