It varies whether or not a CO asks for the partner to be present and available for interview. There is nothing in the regulations to say in what circumstances this should happen, so nobody can tell you if your wife will be called upon, or not.
It's very unlikely to make any difference to NZ employers what stage your visa application has got to. NZ nationals have no particular reason to be aware of the procedure for getting residence or any other visa, so all that makes any difference to them if they're interested in employing a foreigner is if the person HAS a visa, not that they are waiting to hear if they can get one.