I love all things off world alien or alternative universe beings...I think the government is getting ready to say we've been invaded by an off world race and we must come together as a human race to fight them off. No one is buying all this crap about wars and terrorist anymore. Now we have to fight off world beings. The real aliens have always been with us, it's the folk who start and profit from wars and sufferings.
So my far out speculations is -- the sightings of aliens and alien craft are just government projects. Fleshy robots, GMO people and advanced technology they haven't told us about.
I dunno if any advanced off world race would want anything to do with humans we are so mean, except maybe eat us