I have a call into the office about Kwajalein and haven't heard anything yet.
I can't find any official announcement and have seen this attributed to ICAO (icao.int/pages/default.aspx) which has nothing about it on their website. ICAO uses the Defense Internet NOTAM Service (DINS) which is a service of the FAA (notams.faa.gov/dinsQueryWeb/)
The only other potential sauce I can find is a couple sketchy news sites.
I think this is fake.