Thanks for the heads up on this. Too late for me though. Just 2 days ago I booked 2 awards from BKK-SYD for summer 2015 on what was shown (and confirmed on booking) as F on the 747. The *only* reason I chose this option was for F. Since Thai still shows it as 747 F on their website I probably can't even get United to cancel and refund at no cost.
Any suggestions?