given that photokina is finished ... looks like at the earliest we'll be seeing these announced next year.
I don't doubt that both of these are in the pipeline, as the EF-S 60mm Macro could really stand to use IS, and the 180mm L Macro could really stand to use IS, improved focus speed, weight reduction ... basically, an all-around makeover.
wouldn't mind it if they bumped the focal length up to 200mm like some of the rumors suggested.