4. More Voice-Over From Andy Serkis' Mysterious Character
One of the big things that got everyone talking after the release of the teaser trailer was that mysterious voice, which so many mistakenly (and quite justifiably) believed to be Benedict Cumberbatch. As it turned out, however, the actor providing the voice was in fact master chameleon Andy Serkis, who is presumed to be playing the part of a Thanos-like villain who may be the ultimate big bad of the new trilogy (and almost certainly sends Kylo on his mission in this movie). According to rumours, fans will get to hear a little more from his character (but still not a physical reveal) in the new trailer, as he says "Don't get too sentimental" while a shot featuring Han, Leia and Chewie is shown. It does admittedly sound a little on-the-nose and it's difficult to imagine how such a line would actually fit into the movie, but perhaps it'll make more sense once everyone sees how it's actually delivered and juxtaposed with nostalgic imagery. Or maybe it's simply a line for the trailer and won't even feature in the final film.