If they release a mirrorless camera that’s too good then they risk cannibalizing their current line-up. Although Canon has discussed how they are willing to cannibalize their current line-up this sounds more like lip service. Unless Canon has set aside a large enough cash cushion or they release a fully developed line of cameras, lenses and, accessories in a very short period of time, they won’t want to undermine their current systems. Chances are, Canon was probably going to release something relatively mediocre based on current standards. Unfortunately, if they do, many Canon shooters may feel that Sony is the better option and this is primarily down to the fact that the a7 III is such an incredible and cost-effective option. As mentioned above, the cost of entry for Canon is much greater now because of this intentional and strategic move from Sony.