I highly encourage Square to make this known to older players returning to the game. I guarantee you half of the purchases for the expansion will not realize they cant just play as the new Jobs and will be angry. And right now there is nothing much out there with a Disclaimer that content is dependent on completing the MSQ.

Personally i think this is a utterly terrible business decision. Forcing someone to have fully used the old product before they can enjoy the fruits of the new one.