A 35-70 2 IS L is crazy, the new 24-70 ii is 2400 dollars, this going to be wortha hell of a lot. And the only is lens with f2 is the 200mm f2. Building this lens would exterminate the 24-70 ii.
I did however hear a couple rumors from my local camera store who coordinates with canon, and actually shared with me the official 6d specs before it was announced. They say there is a new 2.8 ef-s is zoom that will update the 17-55. It will have different focal length, and a better is motor. Also, ther is a rumored 24-105 replacement. It will have a similar hybrid is system like the 100mm macro, a 3.5/4 aperture, and a 20/24/35-105/110/120. All options are being considered. Canon is actually working on a lot of these rumors, especially the 14-24 to go with the 3d x, and everything else is going to be launched with the new Aps-c line, a new sensor with hybrid af will be in the (T5i, 70d, and the 7d ii, and there is a rumored special 1.7-1.8x sensor supposed to be in the "pro wildlife" dslr. This is like the Arab spring of canon dslrs. New ef-s STM lenses are to accompany them, and some new ef primes are rumored to. I did not hear anything about when we will see some new l zooms. (with the 14-24 excepted)
