Canon might be releasing more for their mirrorless brand, but lets not forget that they've a huge library of EF lenses for their regular DSLRs. Those lenses are already top of their game and chances are that updates for them don't generate huge sales because those who already have them are unlikely to upgrade so quickly when the existing models are already very top grade. The mirrorless market is newer and so there's more scope to add specific brand lenses and products to it because there isn't anything else out for it. I'd be surprised if Canon dropped their DSLRs entirely. Instead I can see them contract the focus on product lines and new product lines and camera lines instead of spreading their attention thin like they had started to do.
I'm not so sure about that, if only because they appear to have designed both the mirrorless APS-C mount and the mirrorless full-frame mount to natively control all of their respective DSLR lenses just as well as if they were native. When I put an EF-M lens on my the M100, the menu system presents me with controls like setting manual or auto focus, or image stabilization enable/disable. When I mount an EF-S lens, those electronic settings disappear from the menus, and the camera now responds and provides feedback on-screen when I enable or disable autofocus or image stabilization.
Canon seems to be counting on their mirrorless customers using native-mirrorless lenses and EF/EF-S lenses depending on what they wish to photograph. Canon also appears to have lucked-out from their decisions in the mid-eighties, since it appears that their EOS lenses as far back a the launch of the system remain fully compatible with the latest cameras as if they were designed and manufactured yesterday. I suspect this is part why Canon has not released many native lenses for either system, especially if buyers of their mirrorless offerings were buyers of their SLR/DSLR offerings, since those buyers may not want to re-buy similar performing lenses, so sales would be lackluster even if the lenses existed.
If that's their logic then it's fairly sound. What it seems to have done is led to them focusing their attention on
small lenses, pocketable lenses. Both the 15-45mm kit lens and the 22mm lens are tiny. New-to-Canon customers may well be satisfied with these physically tiny lenses until they really get into photography, and at that point, it might not matter that they have to use an EF to EFM adapter, since the setup is still smaller than a DSLR anyway.
There aren’t allot of Costumers out there who are going to buy pro lenses to begin with. Most costumers have always bought the smaller, cheaper lenses and not the high end stuff. High end lenses has always been reserved for pros and crazy hobbyists. with a shrinking market where fewer and fewer enter the camera world, fewer will make that transition, in a downward spiral of death.
Allot of it has to due with the massive improvement in hardware as well as a better and smarter point and shoot software than found in dSLR and Mirrorless, so most don’t benefit of making the transition unless they are going to make 4k videos. We can’t really neglect the fact that smartphone has reduced the gap considerably for someone who only shoots in auto mode, and with the bulkiness of these it ain’t making it easier.
I also believe this plays an important part in the on going trend of shrinking cameras and reducing weight, it doesn’t make a hell lot of sense to launch the direct opposite of where the demand is and where the directions of the trend is going. Just look at Nikon they have done everything they possibly can to reduce the size and weight of their stand zoom lens, the 24-70 F2.8 is considerably lighter and smaller then most competitors and their marketing also like to point that out. It falls right in line with the trend to stop the ongoing decline, you need to make substantial smaller and lighter products to get people on board, or else they are gonna stick with smartphone or jump the Go Pro wagon.
Secondly there is no reason to improve or launch new EF-s lenses if there isn’t a demand for it, and it’s unlikely many would cash out for a new version, most pros doesn’t do it until their old lens is worn down or they drip it. Who else is going to buy a new EF-S lens? Most new photographer go in the mirrorless direction, unless they want to photograph action and wildlife.
They are only investing where they can make profit and that is small lightweight Mirrorless systems and lenses. Although Sony has launched pro lenses you don’t really see them launch allot of them or for that matter very often, you can go figure why that is so.
