I always thought that, since many old sci-fi themes have come true, (rockets, lasers, etc..) it would follow that aliens would eventually show themselves in a big way, like landing on the white house lawn. (Like in that old movie). Even if it's just to be a distraction, or a false flag/power play by the world's elite.
Now, what they are, exactly, is another question. I think it was a big step forward that they finally admitted there are UFO's, though. Kudos for that.