Score: 1
"most of the key points have been said already"
date: April 5, 2005
Even the subtitles don't know what the hell is going on. Think of subtitles as an arbitrary observer, they tell information crucial to knowing a story plot or concept that can't otherwise be shown with images or sound.
Saying "The year is 2056 or we think it is" is just too much. To me, you lost any serious ambience or plot development you may have had. If the narrator; the all seeing storyteller is lost on the date, then the story will not be interesting. *yes I know it's supposed to be the character talking, but it doesn't work well at all.* Give a definite date, leave out any pronouns (I, we, etc.) and at least give us something beyond "There is an enemy and no one knows when they came [or where]"
You can imply an enemy, just by giving a situation or conflict. That's what a trailer is supposed to introduce. Just like the art in a movie should be able to imply a date, mood, conflict, and verb.
good luck on your next trailer.