Build out over the area now used for queuing. All the support services and hospitality access, including lifts, could go there. Some new bar area and concourse food facilities for the non-hospitality customers would be revenue earners too. This first floor space means we queue under it in the dry to get in. Perhaps those external 'smoking areas' (like at Norwich?) could be incorporated too.Where do you put all the support infrastructure for it? Bars, lounges and kitchens. You can't have all that hanging in midair off the back of the stand. You can't do anything without expanding the stadium skeleton. It's just as easy to extend the upper tier round from where the north upper currently ends.
Catering for all needs.