The thing with M. Knight is that in order to make a successful film, he needs to be kept under a pretty tight watch. That is what's happeneing in this movie.
They're trying to pander to a wider audience, and that can alienate an already wary fanbase.
It's just a teaser, don't expect to much accurate information from it.
I still withhold a verdict until either a full trailer is put out or more information is put out. To little data exists to draw a conclusion at this point.
That said, all this Trailer makes me want is a proper RTS for the Avatar-Verse.