According to a recently interview with Canon executive Yagi Koichi by ACSII.jp. Yagi Koichi said that Canon is working on new mirrorless products that plan to launch in Q3 or Q4 of 2016, maybe around Photokina 2016.
From ACSII.jp: (Translated by Google)
in the third quarter and fourth quarter of 2015, we have been able to ship a lot of mirror-less the number of cameras, not yet satisfied by For. At present new products, but mention can not be, the third quarter in 2016, towards the fourth quarter and that the “mirror-less market is forecast to grow, Canon’s share of the” mirror-less camera market and two years ago the 4-position, we want to aim at the 3-position.