Cheers mate. There's one image they have on this site that comes a tiny bit close!
I have discussed this idea with a few football watching hoteliers and bar owners here, some have run huge venues in London. Using that huge concourse space 365 days a year we can all see the potential of a venue this size but usable and as cosy as any pub when in normal day usage.
Think of a super Wetherspoons with 2000 odd seats on the roof!