Nasa is rumored to announce a new manned moon mission at some point very soon.
It’s been floating around space blogs for a while, but getting a firm data could be interesting.
Exploration of Earth-moon L2 could get started as early as 2021 with the first manned flight of SLS and Orion, which NASA calls Exploration Mission 2. (Exploration Mission 1 is the initial, unmanned test launch of SLS, slated for late 2017.) “I’m not privy to the specifics of this, but one could conceive of the second SLS mission being the start of activity in cislunar space, rather than just being a lunar orbit mission,” Logsdon said.
I still think 2021, 9 years from now, sounds like forever away. 2019, even if still a while, makes it feel more around the corner. Still in the same decade. For optics, I would push hard for that.