Not had a chance to go through it in depth, but Business Class Fares don't seem to have beeen hit so hard as Economy Class.

A Business Saver earns the same as before and the Upgrade increase is not as much as Economy.

I suppose we'll have to see how each level is priced before deciding whether it's very bad or just bad.

As above, I think it might be time to upgrade something just now, or will the "old" upgrade rates remain for tickets already purchased?