It does not really matter... The moment they start winning trophies one after another and play entertaining football like they have done, it won't be long till those seats are all occupied. They were just noisy neighbors to begin with... They are much more than that now. Just sayin.
Well the fact is they’ve been winning and competing for a few seasons now, and if how they’ve been playing this season can’t get them to fill their stadium, then nothing will.
The trophy winning will help them build a formidable fanbase globally, but is that really going to affect domestic participation? I’m assuming all die-hard local City fans are the ones already in the stadium, and there aren’t going to be many new local converts joining in- i’d associate that phenomenon more with foreign markets than the domestic english base. And no way are they going to get 10,000 (or even half that number) visiting tourists every matchday even at their peak.