i'm assuming the ground/downstairs will be freely open, a covered version of the present bar and food options. upstairs a larger Dicks replacment. all limited access will be net loss of facilities.
if its sensibly planned, down stairs will be unrestricted bar, some food, with the capacity refering to the upstairs area. or could be just the number under cover, the images suggest it'll be open sided so people come and go.
but this is at the convergence of the other stands. the flow of people presently go straight will now have to come round to join with those from other stands to the station, everyone will slow to get round that corner, cause backing up.