Every brand has it's ebb and flow, its peaks and luls, it's oscillations. Canon had their peak, and have entered a lul. They will have another peak in a year or two, and another, and another, ad inf.
I know what you are saying and I wish that is the case, but clearly it is not.
When the DRebel and XT were released, they stayed on top of bestselling and most-clicked camera charts for as long as they were available. That is not happening now. Clearly, the Nikon D7100 and D3200 are NOT new releases, but they are generating more interest than Canon 70D and 700D/100D.
Anyway, let's see how Canon responds in 2014. I'm hoping for more breakthrough (like dual pixel AF) and breathtaking (like the Sony 24 MP APS-C sensor) products. But at the moment, I just want to purchase the 50 f/1.8 IS and 16-50 f/4 IS as soon as they are announced.