Originally Posted by
773ER
I think all aircraft from A6-EPV onwards have the lie-flat J class. Which is 21 in total I think. EQH-P have the new F and Y, along with a slightly different finish in J, but the same seats as EPV onwards.
It's more than a different finish in J, it's quite an upgrade though the photos don't convey it. I understood OP's question as relating to those.