This would be unlikely because there is no reason for someone from Manchester to support those clubs. Also, they don't have the infrastructure to maintain a major Premier League club. If Manchester was the size of London then it could support as many PL clubs, but the reason Arsenal, Chelsea and Tottenham have become so big is that they were all established many decades ago. And there hasn't been an example of a club being established in the post-War period and becoming really successful; until now the most successful is MK Dons.
These things help to some degree, but does the even distribution money mean that the lesser clubs can compete with the top six? Some will cite Leicester winning the league, but that is a once-in-a-lifetime occurrence. The fact is that almost everyone accessing RC could predict the top six clubs in the PL for 2018-19 right now. Probably 99% of people would get it right.
Regarding the all-action style, Scottish football is similar to English football in this respect, does that mean people want to watch the Scottish league? What makes the PL quite unique in Europe now is that no-one can be quite sure who is going to win it. That's why it's more watchable. Foreign viewers aren't interested in watching an all-action match between Southampton and Burnley; indeed, when the so-called 39th game was being spoken about, this was one of the considerations.
It has also been a weird twist of fate that Chelsea and City got their oil money, as without that they would be absolutely nowhere, as they were before they got it, particularly City. So that has added two more competitive clubs. It's combination of that and the fact that London dominates the country economically, which means that it's the vast, sprawling metropolis that it is today, and it can and does support three world-class clubs.
If the PL had one big club in Manchester, one big club in London, and one big club in Liverpool, it wouldn't be anywhere near as popular as it is now. The TV money could be distributed more equally in Spain, but Barcelona and Real Madrid are too big now. It is distributed evenly in Germany:
https://www.statista.com/statistics...on-revenue-bundesliga-football-clubs-germany/
...what difference does that make?