Is our sub fee not enought

[Felis]

It's not rewriting the MSQ. It's literally just dividing it into discreet chunks that you can start when you want - a la GW2. -_-

Will still need a rewrite. 2.0-4.0 is a whole story, not a collection of short stories with not much connection between them.
Or we will get a chronology fragmented story like in FF XIII-2, where you start with fighting for Ala Migho, and then enter your first time Eorzea, following with a raid to the garlean capitol, and at the end to fight against Nidhogg.