And Singer said in his Twitter Q&A the other day that the action sequences weren't finished yet, so none could be included.
Well, there was a naked blue chick doing acrobatics...that has to count for something.
Based on your post and what I saw, I'm guessing that the future version of the characters are in a timeline different from the one we saw in the other X-men movies.
Not necessarily...it could be that the present of the continuity that the earlier films were set in has gone horribly wrong, and they're backtracking its historical cause to an earlier point. Indeed, they went horribly wrong for us several years ago. This could be their way of doing a reboot so that the new cast is free to explore their own stories into the present timeframe.