I believe the company has done a back pedal and the last two FO slots in Wellington have been allocated to the RNZAF which will bring the WN base upto the required establishment numbers.
Air Nelson have interviewed 10 aviators today with a view to hire 8. Possibly another round in a couple of weeks. These are meant to crew the last two DH8-300's coming on line next month and June. These aircraft are assigned to Auckland and Wellington apparently.