This is also only the second promo. Films usually have three -
Teaser - this is usually very vague, rarely has any footage from the film. It's just enough to tell the audience "Yes, the film is being made".
First trailer - this shows key images and characters from the film but usually reveals little if any info about the plot.
Second trailer - this one finally gives you the TV Guide version of what the story itself is about and how the various characters and images connect beyond what you didn't figure out already.
So far, we've seen the Teaser and First trailer. The Second trailer usually shows up within 2 to 3 months of release, so we should be seeing that one somewhere in the February to March range. That will be the one to pay attention to. These first two are just to GET your attention and get buzz going.