May happen after the election if Trump wins. He has hinted towards it. (This isn't meant to be a political response).
“So many people ask me that question,” the president said. “There are millions and millions of people that want to go there, that want to see it. I won’t talk to you about what I know about it but it’s very interesting. But Roswell is a very interesting place with a lot of people that would like to know what’s going on.” - Donald Trump
I'm trying to locate the video. He did NOT deny the existence of ET's. Instead, he called it "interesting". And the look on his face told it all.