Agree. I guess the storyline will be all over before December, but I'd rather watch it fresh.
Then there are those trailers that reveal the entire movie, "They're up, they're down, facing great odds, they fight back! Will they prevail?? Of course they will otherwise the audience will be pissed!" Lol. Unless, it's episode 5, but we knew the story was not over.
So far the SWs trailers have been most excellent, raising anticipation, without revealing too much.