I have been following the developments at PPQ with interest. However, before Air NZ will be able to utilise it, there must be some improvements. 16/34 only recently received a long-overdue repaint, and there are still stones all over the place. The bar with regards to airport maintainance will need to be raised before a Q300 touches down there.
Another problem is traffic. The circuit is already congested at busy times, and I can only forsee this getting worse. If ANZ wish to operate from PP, there will need to be at least a UNICOM set up, if not a control service for the busy periods.
As for runway 11/29, don't shift it, don't close it, don't fix what isn't broken. It is good for light GA in westerlies, and anything bigger can still use 16/34 in everything but the worst crosswind conditions.
My 2c...