Just had a talk with an Edelweiss FCM. They don't know too much at this stage, but Rolls apparently released the information to them that it's a high-pressure turbine blade which failed, and originated the complete failure...
Interestingly enough, all the "live" tests, supposed to prove that a blade failure will NOT lead to an uncontained disruption are done the same for all manufacturers: they throw stuff into the front of the running engine, after which a low-pressure compressor blade fails, and the engine parts then exit the via the rear outlet, leaving the nacelle whole...
This incident should start not only RR, but also the other manufacturers thinking about how to build nacelles to withstand blade failures in the high-pressure area... I wonder what this incident (first major incident for the RR engine in 8 years) will do for the ETOPS certification?