Just looking at the 5DIII, a big drop occurred about a year before the 5DIV was announced, but right around the time the 5DS (r) were announced. So, if I were to speculate and if rumors hold that it is the mirrorless coming not a DSLR, the first mirrorless out of the gate is going to compete with and likely be better than the 5Ds(r), thus is a high MP, likely "Pro" type camera. In other words, Canon going head to head with the A7RIII....if I were to speculate just based on a price drop in a single market (always dangerous)
Can it be both? That Canon has a similar new model to release about the time sales slow down to the point that stores stop ordering/complaining?
I would expect Canon to have a pretty good sense as to how a particular model's sales decline over time and have a similar alternative release somewhere in the mid point of the life cycle. I suspect that is why, for example, the 5Ds(R) and 5DIV are staggered essentially ~2 years apart. Now, mirrorless can enter the mix.
Can it be both? That Canon has a similar new model to release about the time sales slow down to the point that stores stop ordering/complaining?
I would expect Canon to have a pretty good sense as to how a particular model's sales decline over time and have a similar alternative release somewhere in the mid point of the life cycle. I suspect that is why, for example, the 5Ds(R) and 5DIV are staggered essentially ~2 years apart. Now, mirrorless can enter the mix.
The release cycle for the 5D series is getting long with every release 37 months, 42 months and 53 months ish, so 3/3.5/4.5 years ish, so if you are using this as a basis (albeit an unreliable one) for the release date of the 5DS/5DSR's replacement it won't be until 2020 (5 years after 5DS/5DSR's release date)