Hypersmurf
Moderatarrrrh...
Personally, I think that a reversion to the 2e haste (without the aging!) should be on the cards. That way, it would nicely mirror Displacement: Displacement effectively doubles your defensive power; Haste effectively doubles your offensive power.
Aside from the fact that that would be overpowered as an eighth level spell, let alone a third.
I doubt I'd even allow it as a 9th.
-Hyp.