zerozero:
I hope the new Quito airport yields everything that has been promised.
Seems like the missed approach/departure/OEI issues would be worse, because you have to clear the same terrain, only starting from a lower elevation.
The present airport works quite well for those who can use the two RNP AR approach procedures.
What the new airport could perhaps do is enable lower ILS minimums, albeit with a climb gradient missed approach.