I seriously doubt it also, but you're forgetting there are 14 other clubs which bring in hundreds of millions of pounds for the Premier League.
If the 14 teams band together then there is no Premier League. These 14 teams can demand rule changes, can demand the league hold the 6 clubs accountable to the Premier League's own rulebook.
If the 6 clubs persist with their plans, and the Premier League is only half-hearted in its punishment towards them and it leads to them staying into the division and dominating it due to their massively increased wealth, then the 14 other clubs will need to take it into their own hands.
As Steve Parish hinted at, the 14 clubs could decide that they no longer want to play in the Premier League, and essentially force a new league to be created for them and have the Premier League banished.
I think if and when the 6 clubs refuse to back down, it gives huge power to those left behind to demand change.