« on: December 15, 2013, 09:50:11 AM »
It is not unreasonable to say that Canon will replace the 20mm f/2.8 in the near future with IS, if they are replacing the 85mm f/1.8 USM with an IS version. Price should be pretty comparable to the 24/28/35mm IS primes. My assumption of this future lens was in no way unrealistic.
I agree with you that it is realistic, but here's another way to look at it: the 20mm f/2.8 is apparently selling well enough to stay in production for many years. Canon could make a new non-L 20mm, and have one 20mm prime lens in production, or a new 20mm L prime and keep on selling the non-L as well.
Then again, maybe Canon never made a 20mm L because 20mm f/2.8 sales are too low to justify two primes at that focal length, in which case it might be too low to justify a new 20mm f/2.8 IS USM.