Not too sure where you got that from? No herringbone layout in Club World for BA. Although there is in FIRST.

http://www.newclubworld.com

If anything seating is in a 'ying-yang' layout.

The revamp does sound interesting though, about time OW courted them and brought them on-board, although having never flown on them they appear to be a quality airline and the trip reviews i've read here FT have seemed positive.

That being said it sounds as though they are using VS' business class seats and the SQ First class seats, bearing that in mind perhaps they are closer to *A?