This is bad news for me (buyer of F tickets exEU to BKK or SIN).
The price won't change. I knew that I would have a chance to be downgraded to J, but still had a good chance to have F.
It is not so much the hard product that I miss. A LH J seat is quite fine for a 4 hr flight. But a superb dining experience with Krug, Beychevelle, ...