11 Shevat 5776
(H/T to Itzhak Drahy of Yerushalayim)
'Nibiru' was also called Planet X because "X" in this case stands for the number 10. That was back when Pluto was still considered to be the 9th planet in our solar system. So, this article in the Washington Post is still talking about Planet "X" (note it says it's at least five times the size of Earth), but they're now calling it the 9th planet.
New evidence suggests a ninth planet lurking at the edge of the solar system
Astronomers at the California Institute of Technology announced Wednesday that they have found new evidence of a giant icy planet lurking in the darkness of our solar system far beyond the orbit of Pluto. They are calling it "Planet Nine."
See the entire article HERE. And note also that its proposed orbit is also the same as that which was predicted for Planet X. All the details appear to be the same for Planet X as well as Planet IX.
Itzhak seemed to suggest in his comment that they may now be laying the informational groundwork for revealing it as it may soon become impossible to hide it any longer.
Also being reported here, here and here. And at Wiki. What are the odds that this would be reported now - a little less than a month after the autistic messages brought it up?