Out of curiosity if the gear was not down and the plane did impact the runway wouldnt:
a. We have pics of the runway itself (especially seeing that the passenger list already leaked)?
b. Have some more damage on the fuselage especially towards the rear of the plane (potentially tail strike as it tries to go around)?
c. At what point does the RAT deploy?
d. Also I do understand that engines are not designed to take that kind of impact but can an engine expert comment which part of the engine is most likely to be damaged with an impact like that?
e. What kind warnings does a 320 have in case you try to land gear up?
a. I have not seen any pics of the runway itself, but I assume it's only going to be a matter of time.
b. I don't know why there isn't any damage, I agree with your claim that there should be, possibly a very shallow nose up go around???
c. Quick google search says it deploys if all aircraft electrical power is lost at a speed of greater than 100kts for an A320
d. Not only engine damage, but if bad luck is also a factor, FOD?? But the engine definitely got a rattle if it hit the ground at landing speed, maybe enough of a jolt to damage the compressor (it looks like the marks are in/around that area)
e. This has been answered a few posts above mine
My layman-is guess is that somehow it landed without any gear, resulting in both engines striking the ground. At this point, they decided to go around, but with a shallow climb. Due to damage to the engines when it hit the ground and/or ingestion of FOD they failed. The RAT deployed while they were climbing out on their remaining momentum, then eventually it stalled and there was nothing they could do.
EDIT: I just saw the video with gear down. I am stumped for now