Yes, Air New Zealand was going to cut services to Palmerston North, now Jetstar is going there they are buying new aircraft and doubling services.
Ummm......Palmy was never in any danger of losing services from Auckland and Christchurch, the opposite has been the case for a longtime with increasing frequencies and upgauging over the past few years. Routes to Wellington and Hamilton are a different story and time will tell if (once the Beech has gone) the market adapts to the new timetable.