Let's be honest here they can invest wtf they want but you support a team, not a cpl of star names, I don't give a toss who goes there cause I along with all others I presume do not give a shite about any of there teams and never will.
No amount of star names will ever make me want to watch a league I have absolute zero interest in, that's what there problem will be.
It would have to go on for the next 20 or 30 years to stand a chance at getting remotely any serious interest, what I do think however is there maybe a replacement for the champions league around the corner, if that happens there may well be a time to worry about football in this country as we know it, but if that does happen me and I would imagine 75% of fans of premier league clubs will loose interest in the game altogether