The latest photos (today's) appear to show the floating debris from the large section fuselage splats with the ocean. this to me suggests that the drift from this material is current and wave borne from where the major sunken debris field is.
How much came off separately in the air is unknown (to me) but I agree that some of the pieces shown earlier (crew rest etc.) likely were shed before the fuselage hit the water.
To me nothing new and revealing, just a confirmation in some evidence that it broke up in the air and came down in large sections of fuselage and small pieces from inside the fuselage. Then the rest probably disgorged itself mostly upward as the big pieces hit the water. The question remains why.