Correction: Canon's IQ hasn't changed or improved over the last years for anything besides those moving from the 1D series to the 1DX. Nikon, Sony, Pentax, are all delivering new sensors with better performance.
What is Canon doing?
Nothing. What a joke of a company.
For the last years you are basically right.
In 2005 I testet a Nikon D70 vs. a Canon 350D. Both with a standard lens. 350D produced photos, D70 produced "digitallish image like results". I decided for a 20D which was far superior just to the D200.
These days Canon was way ahead because these digital cameras produced non-digital looking images.
Now the products of both companies show the capability to produce fine images - quality-wise. Nikon has some advantages.
Oh, I forgotten about the topic of this thread ...
Just let us wait what comes and if a product isn't interesting, skip it. My two 40Ds substituted the defect 20D (repaired it now with 1ml Isopropanole to clean the trigger switch), my 600D was added to allow for flexible video (need macro, strong tele for educational short videos (non-art, just functional!)). And I will replace my 40Ds if sensors have 10 to 15MPix real true color capability (meaning 40-60MPixels in bayer patterns).