Originally Posted by
kq747
SEA is tricky as it usually gets the older seat with some new ones sprinkled in. The last few weeks have consistently been the new(ish) lie flat seat so there is more hope than I would have had a couple months back but there's always the chance you'll get the old seat as it's easy to make a aircraft swap. Earliest you will know is when the aircraft leaves DXB on the day of travel. So as the previous poster said, expect the old and hope for the new.
It seems like SEA is getting the newer seats more regularly now.