I think there’s a real fine line with capacity.
Too small and you lock people out BUT there’s a real clamour for tickets enhancing the occasion and atmosphere.
Too big, imo 65,000+ and you really run the risk of becoming a day tripper stadium like the Nou Camp, Old Trafford, Anfield etc. I really really really don’t want a 75,000 seater stadium full of day trippers. It’ll massively affect the atmosphere and at that stage you’ve lost what made NUFC and its fans so special and no doubt what was a huge factor in buying the club.