Remember folks, Canon is not your friend. They're in the business to make money.
With that in mind, here's my theory:
- Canon purposefully did not include a record limit in the most recent firmware update to the R6 in anticipation of MK2. The R6 will not get a record limit update.
- The stack sensor is too expensive without adding $1000-2000 price increase, which would impede on R3 sales.
- Expect the Mk2 to cost more than the R6, so $2800-3000
- Expect similar performance in photos. If you take pictures there's no reason to upgrade.
- The main difference will be a firmware upgrade that allows unlimited recording because they added a small heatsink internally.
The stacked sensor thing was hugely optimistic to begin with. There's no way they would impede on the sales of a camera that literally cost triple, even with reduced performance.
It's very likely that this is just what the R6 should have been if it didn't use the old 1DX sensor. I.e. the original R6 is "mk0" and this is "mk1".
Let's see in a few days I guess.