tropikey yes that is the B/E MiniPod seat that is currently installed on all B777s.
No one can give you a time for when the new seats will appear on the AKL route. The 34 773s are scheduled to take 12-17 months to retrofit with a possible start date in June. After that the most logical aircraft type would be the B772s.
Based on the known information my guess would be that AKL should see the new seats in 18-24 months.