I think these are the 763s that have been arriving in Auckland to have the new interiors.
It is a bit unusual to put new IFE into existing airframes - some of the IFE suites and new interiors cost a fortune for planes which I suppose will be in service for only a few more years. (5 years?). Remembering Branson's comment that it was easier to get finance for a new fleet of planes rather than to install IFE into the planes he already had.