The interesting thing about these quotes, and the Nev Power from FMG quote about 'returning to more historical levels', is that they don't put a dollar figure on what they expect it's going to be and when.
Why? Because they all know how easy it is to be wrong (as everyone has been so far) and they know they could well be wrong again. 'Not remain this high' could mean anything from a drop of $5 to $60. Even if we stay in the 80s, that's great.