Originally Posted by
Spiff
No thank you.
The last thing I want to have to do to get into business class internationally is have to buy premium economy!

This. Correct me if I'm wrong but with a 4th class, doesn't this allow the airlines to upcharge even further? I remember when BR intro'ed this concept way way back when and some of their Super First Class product was through the roof (we're talking $9-11k TPE-SEA if I remember correctly).