Certainly did not return to the original loads!
Some longhaul flights (day flight CPT, MIA and MRU for instance) do have 16 cabin crew. Is there really a need for an additional crew member on all B747 flights? Not in my opinion!
Why should there be an additional crew member in WT when that cabin is all ready covered with 5 cabin crew? A four corner service is done very easily with the purser organising the galley. Look at most airlines and you will see that the crew complement is usually like this.
I suppose with an additional crew member the service can be completed quicker and crew rest will be longer. Please do not shoot me down for this but this is the case on many flights.