Generally, the last several months, A class availability becomes less and less even for 10, 11 or 12-mth out, even you see F8, A is 0.
Also annoying is, they can‘t tell you for sure if any upgrade availability whether LH or LX, but they can tell with certainty on award booking, this is another very strange thing to me. It makes it almost impossible for me to use evoucher in any of meaningful long-haul routes.
So much intransparency.