Originally Posted by
FUMR
Forgive me but I'm not quite sure what you are looking for since you seem to have answered your own questions:
Aircraft diverted.
Aircraft declared AOG
LH engineers due to arrive today to investigate the problem
+1
I'm not sure what (if any) additional information is likely to emerge. The LH engineering team's priority will be to resolve the AOG and get the aircraft flying again (presumably involving an engine change).
Any "investigation" will likely happen once the u/s engine arrives back at base and, unless it has wider airworthiness implications for the Trent XWB, the findings probably won't find their way into the public domain.