Originally Posted by
eponymous_coward
It seems to be
Sky Suite II on JL 68/67 when they swap SEA-NRT to a 767, not the SS III reverse herringbone. And it's a
planned swap, this is for January 2024.
Sky Suite II is unique to the 767s, and the Sky Suite III unique to the 787-9 (used to be on the now retired 777-200ER as well), so getting a 767 is a guarantee against the Sky Suite III.
(some may helpfully point out that there a few old regional 767s in the fleet with recliner seats. Though the risk of them being sent to Seattle is not worth talking about)