The NTSB site layout is not too intuitive and it's search function is spotty.
Here (link) is a place that you can find all NTSB work-product on foreign investigations, just look for G-YMMM. However, there is really nothing new in there.
NTSB - Aviation - Foreign Investigations
If you suspect there is something in the official docket, but not shown on the website, then you can make a request for that record here:
http://www.ntsb.gov/pubmail/pubmail.asp