Sometimes no news is bad news.
We're told that Canon is developing a new 50L and working with different apertures, but that no announcement of a new 50L should be expected in 2017. The Canon world is waiting impatiently for a new 50 f/1.4 or a new 50 f/1.2L, but it looks like we'll be waiting a long while longer.
We haven't nailed down when the EF 85mm f/1.4L IS USM is going to be announced during the year, but we do wonder if the new lens will lead to a new 50mm f/1.2L and a new 135 f/2L IS?
One interesting bit of information we've heard about a new 50mm lens is that Canon is testing an f/1.0 design, which would be quite the followup to the original “classic”. We haven't seen any patents for such optical formulas yet, but we may over the next year.
We're expecting 4-5 lens to be announced by Canon next year, starting with the new EF-S 18-55 f/3.5-5.6 IS STM (woo!).