Thanks to the OP for sharing the layout info and the link.
Just would like to add that I am very disappointed about the WTP layout. With a seven-abreast seating in the mid of the UD it doesn´t seem to have any new elements or a special style.
Like the genuine Quantas layout with 32 seats, 2 toilets and thererfore a separated area at the end of the UD. With WT and WTP on the Upper Deck it won´t have any Premium feeling.
Also not convionced that they are able to sell 55 seats without heavy using reduced upselling offers during the MMB process.
This is a little silly isn't it? It's just another aircraft. The 'plus' is the bigger seat, more legroom and better catering. That is the premium over WT - not the size of the cabin. BA obviously feels that having 55 seats makes the most commercial sense.
Not BA's fault that Qantas doesn't feel they can sell as many premium economy seats as they can!