It's not a flipped-over picture, judging by how the front wheel's door opens. So the aircraft actually was running an unsusual direction.
I think it's just on of the high speed taxi tests, coming to an end. If it were a landing, we would have seen neww all over the Chinese forums.
Why do you think it's not landing from a flight? The nose was clearly off ground and the break chute was opened. If taxiing, I believe the nose will not be off ground.
Flipping over a picture will produce a mirror image of everything including the number 2002 (the FW's door is hard to tell since it's symmetrical). So the picture is not flipped over. The 2002 could be going the opposite direction or it could be that someone took the picture from the other side facing towards the fence where the fanboys are. Or it could be the 2002 has landed even earlier than the rumour we've just heard?