I can't wait to see these, they are already $1400, I wonder what the price will be. But knowing canon, the prices will skyrocket. With the new systems and glass, I'm looking at $3000 plus.
Some ideas for the special
-lensbaby type lens, maybe with the edge 80 attachment
-maybe a new mp-e with 1-10x
-or even the new 200mm f4 macro
Because sigma is ruling the macro game with their 150 2.8 and 180 2.8, canon may introduce something new because I know people who would want a new 200mm 2.8 l, and it having IS would even be better. But f4 would be a reasonable aperatures of a special focal length of that caliber.