Got the similiar message in my inbox a few hours ago. Bummer. Its going to be interesting to see the response from this launch delay. I wasn't booked on those flights anyways, but I'm willing to bet those who specifically booked it aren't too happy.

However, I noticed, and it is very Japanese of them in the way they sent this message.
Favorite part is the mentioning of the company that has delayed them, and even their location! Suprised they didn't issue a telephone number of the seat manufacturer HQ to call up for people to complain!

Due to delays of development, construction, and delivery, one has to ask: Could "Koito Industries, Ltd" possibly be run by Boeing?