Ac is installing new J seats on 3 new 777's. The new lanes will be put into service on YYZ or YUL/ CDG routes for now. The seats will be like the ones on LX, will be confined to the very front cabin and will host 36 seats a drop of 6 from current J config. Rumour is that the mini cabin that now hosts J rows 8 to 11 will be converted to premium Y seats. This will be unveiled next week I am reliably told. My experience with LX J seats has been very positive. These J seats allow couples seating and single seats with more privacy although not as much as the current pods. These seats will be as wide as the pods and the lie flats will be 78 inches long. It doesn't appear AC will redo other 777's and will try these out for awhile first. The 787's will possibly also have a premium Y cabin. The premium Y seats should take some pressure of the J cabin on very long haul and popular routes as the premium Y seats, will, in my estimate probably be like domestic J although I don't know that for sure. Nor do I know what the upcharge will be for "PY" the new designation.