From the pics, it's either the Goal Bar or the restaurant.
My guess is the restaurant, because that didnt seem to be doing very well via the eye test.
Nope this is replacing the Goal Bar. They took the Goal Bar off of the Pru Center website but still have the restaurant up there.
I recall having a side conversation with Hugh Weber like 3 years ago and he said that the arena was actually designed a bit backwards. He said the modern concept for arenas is to have the restaurant be facing the stage area of the arena so that you can sell premium seats there, and people can sit and eat while watching the show/concert. Having it behind the stage basically makes the seating un-sellable because most concerts and shows have a backdrop.
So this is a way of boosting revenue considerably because ownership of a Loft space, much like membership to the Platinum Lounge, is good for every event at the arena. You simply can't do this type of package with the restaurant, nor can you get this type of revenue with the current Goal Bar setup.
What I'm slightly confused about is, why do this renovation right as the season is starting?