But if they then qualified for a European competition they wouldn't be eligible to enter - that undermines the league as a competition.
I would be surprised if it isn't a requirement on entry to the league already that you agree to participate in the UEFA competition if selected (IE by league position or any alternative oddity created - remember when teams go in for having the least cards?!). If it's not, it quickly would be.
UEFA could also take the route that a club that doesn't supply teams based suitably on merit wouldn't be allowed to compete - no country association would risk that.
As i said they can redraw the plans anyway they want.
Teams in the esl don't go into the uefa competitions.
So then you have the highest after that getting into the cl, after that the el....