The aircraft will arrive in Hong Kong on the morning of April 9th, then depart for Narita before coming back to Hong Kong that night. Aircraft departs again the following day but I'm not sure if its back to France or not.
Airbus are doing route proving flights for VS with the A346 that's why they will be goin to HKG and NRT the schedule also involves LAX as well. As stated above they will be doing these flights in April.
The final flight schedule for the VS flights haven't been confirmed yet.