That Kasdan is rumored to be in the writing wings, is music to my ears. That would help get things moving in the blink of an eye. But maintaining that momentum and actually recapturing some of the human vitality of the OOT? That's something else.
If they can combine the spirit of the first film with its vastly unexplored universe so open to any imagination, with the Kasdan infused more realized and detailed central plotting-then you've pulled the ears off the gundark.