The chief difference here is the removal of the wall on the right side of the shot where the shuttle lands, and a brightening of the San Francisco Bay background (the landing shuttle effect was temporarily scuttled). In the final version of the Director's Edition, only half of that wall was removed, and the parked shuttles on the right were put on top of it. Also, every view of the Golden Gate Bridge in this sequence was substantially reworked (the drawing seen here is a placeholder for that).
This video includes footage from:
Star Trek: The Motion Picture
Buy "Star Trek: The Motion Picture ? The Director's Edition" DVD here.
