I do not know any of you guys nor do you know me.
But I can tell you that I have been in this digital game since long before Canon or Nikon even had a digital SLR.
In that time I have done a few R&D shoots to test products for major camera companies. And before you ask. some of them I did over 10 years ago and are still considered top secret and I cannot nor will not divulge any info on them.
In my time I am always talking, reading and researching the next big thing. It has helped me learn to wade through the BS and see what is really legit in the rumor mill.
With all that said, the one thing that has been common in the past 10 years is that the reps never have had any clue of official release dates of major cameras.. Never.. Too many loose lips..
Another thing is that Canon nor Nikon send press invites to event when there is already a ton of press going to be present. The only time they do is if they see some press lists short of some major players..
Then the invite is confidential. If someone actually leaks an invite on the net or anywhere else they will never get another press credential ever again.
Now for the fun part...
The leak on the french site said a game changer... Hmm what could that be?
Lets have some fun speculating on what could change the game?
High speed video? Possible but I don't see that as a true game changer..
Higher frame rate? Not a game changer at all unless it is 12+ FPS. But seriously who is this camera intended for?
Here is a speculation.. What if they changed the distance from focus plane to lens mount? Say make it wider and install a 22mp sensor that is the size of a 4x5 med format..

Now that would be a game changer.. The new lenses they are releasing should have enough resolution for this size of a sensor..