A couple of thoughts on this coronavirus (2019-NCoV) specifically.
First,
it is still not confirmed (as far as I've seen) that 2019-NCoV is transmitted prior to symptoms. The one published report turned out to be
unfounded.
Also worth pointing out that death rates from the disease are likely overstated at this point. Especially early on, those with mild symptoms likely didn't report them, meaning only the worst impacted were counted and those individuals were more likely to succumb to the infection. China's history of self-reporting these events is poor, but is further complicated by the fact that they can't report those cases they aren't aware of.
Finally, Coronavirus (SARS, MERS, Common Cold) has historically not been airborne and there is no evidence this version is. Rather, the disease is transmitted via droplet (those droplets may be in the air after a sneeze but the disease is contained within the droplets). Typical deep cleaning procedures (used to combat noro outbreaks) should be sufficient and the risk to future passengers would be minimal unless the procedures themselves are faulty or aren't followed.
Typical precautions to prevent the common cold remain effective against this virus. Wash your hands and avoid touching your face, largely.