My prediction is that the subsequent movies in this Trilogy will have the look and feel of the original Star Wars, for that helps the merchandising. The content and the characters will have a Disneyish formula applied to them. It will not have the idiosyncratic brilliance of Lucas and so will not be timeless, but still it will give a good movie going experience, after all Disney has mastered the art of creating good movie going experience, though one would be hard pressed to remember much of it.