Whatever your views on Celtic and Rangers it is clear that they are huge clubs. When people say they would struggle to get into the EPL it makes me laugh. Clearly they would at the moment because they earn about 1% of what English clubs earn from TV. Even most Championship clubs earn far more than they do unless they get into the Champions League proper. If they were on a level playing field they would be amongst the top 5 or 6 clubs in the UK in terms of income and following and there's no reason to think they wouldn't be successful. Each club have a massive support both at home and overseas and in this respect they dwarf City, Chelsea, Spurs or any other of the EPL teams about from maybe 3 or 4.
Not going to happen though I don't think.