The PE "Spaceseat" indeed has been around for some time.
They commissioned it to coincide with the introduction of their 77W's.
I have never used it longhaul but quite a few times trans Tasman.
In refurbishing their 772's from last year a more traditional PE is being installed - I saw comment yesterday that this PE product is to be installed onto the 77W replacing the Spaceseat - thus squeezing more seats in.
I saw comment yesterday that this PE product is also to be installed onto the 77W replacing the Spaceseat - thus squeezing more seats in.
I'd be surprised if that happened. Two other 77W's joined the fleet in 2014 with the Spaceseat so I'd say the refitted 772's and 789's will have that other black premium economy seat and the 77W's will keep the Spaceseat.
I've flown AUK-LAX with the spaceseat for an overnight flight and wasn't overly impressed. It was great whilst awake, eating, watching videos etc. but shocking when trying to sleep as it has poor recline for those over about 5'10