I think this is just the beginning and sooner or later , PSG and all the other big clubs will join.
I can see a European super league with the teams mentioned they'll probably add Celtic, rangers,Ajax, Anderlecht etc.
They'll make a superleague 2 with lesser teams . Essentially I think they want one football pyramid ( with around 5 tiers) for all of Europe. Probably end up with shakhtar donetsk & benfica playing in the third division battling it out for promotion to the second division.
Maybe this is needed to revive football! It was getting stale , the FA cup lost its magic and the gulf with regards to money & quality between teams was a joke . Liverpool walked the league last year an city this year . However a closed league with no relegation and similar to an American style set up would kill football as we know it.