I am sure some sort of an agreement will happen but I am not positive that it will be enough to prevent a split sometime in the future. From the looks of it Justin Sun doesn't have much support within the steem community to just let him dictate the terms so he just might decide that it's not worth the hasle.

On the other hand if his ego gets in the way of his business sense then he's already planning a coup d'etat on the witnesses...I hope he is smarter than that.