The EOS 6D has been hugely successful and a lot of people are looking forward to its replacement. The good news is, there will be a replacement, the bad news is, it likely won't come to market until the first half of 2017.
With the EOS 5D Mark IV launching in August for a September/October release, there wont be enough time to launch an EOS 6D Mark II in 2016. It was never a likely scenario that both cameras would launch around the same time. The EOS 5D Mark IV deserves the spotlight.
The only other ILC camera we think will be coming in 2016, will be a new mirrorless camera from Canon. The EOS M4 may be announced, but I don't see it coming to market until 2017 as well.
We have been told by an unconfirmed source that the EOS 6D Mark II will sport the same resolution as the EOS 5D Mark IV, which is being reported at 24mp. We've also been told that it's possible that the EOS 6D Mark II will not get DPAF, but I'd take that with a grain of salt, as it's still too early to be sure about final specifications.
So this is our updated roadmap for new Canon DSLR/Mirroress cameras.
- Canon EOS 5D Mark IV: announcement in August 2016, Release in September/October.
- Canon EOS M (High end model): announcement in October 2016, Release in November/December.
- Canon EOS 6D Mark II: announcement in February 2017, release in March/April.
- Canon EOS M4: announcement in February 2017, release in March/April
We have no information that suggests we're going to see an EOS Rebel SL2 anytime soon, if at all.