IMHO Canon has learned from leakages and not so well placed announcements followed by delays, bad press and angry customers in the last few years. So I suppose, right now you will only get to know what Canon and Canon marketing department wants you to know.
Seeing the rumors pages being so quiet means to me, that
a) there is nothing ahead – hard to believe, especially after photokina 2012 was pretty disappointing from the point of view of the Canon DSLR customer
b) there is something coming, that Canon believes and wants to produce a strong impact on the market and the competitors
And so they want to only at the last moment let the competitors know and give them no time to react.
Of course, what Canon thinks to produce a “strong impact” and what we gear heads think to do so might differ a lot and therefore it will be funny to see, what will be announced and how people here at CR will react.
Snacks and drinks are stored
so enjoy the show