One of my pals, not on this server, has just had a seat change on them on a LGW - JFK in February next year. They've asked me where the 2-4-2 seats at the back have gone. I've had a look at the seatmap on EF and I am ... confused.

It's a standard 2-4-2 CW rows 1-4, 2-4-2 WT+ rows 10-15 ... so that implies a 77S config. Then you look at the economy seatmap and just think "what"?
(edit: updated to make smaller)