Conclusion: 3 consumer bodies (entry, standard, advanced) and 3 pro bodies (Action, Landscape, Photojournalist) from canon, this would be a nice and logic lineup.
Please bear in mind that in your setup the price of the Pro body for Actions is 3 times as high as the one for Photojournalist. That is strange if it is all the same Pro line.
This is how I see it:
1-series: Top of the Hill, best in everything. Pro
3-Series: High MP FF, low fps, Pro
5-Series: Mid MP FF, very good in high ISO, Pro
7-Series: Mid MP APS-C, high fps, Pro
Then the Advanced bodies in the xxD series, the Consumer bodies in the xxxD series and the entry level xxxxD series.
There is a market out there for Pro APS-C bodies, and if Canon don't realize that , then they ask people to first buy a body which is priced 3 times as high, and then combine it with long lenses which are double the price.
If the strategy of Canon is that they only want a selected croud being able to invest so much money, then indeed it was the last 7D out there, but also the last 5D and many other series as they will be killing their company.
The mass is paying for the R&D for the top Pro lines. BUT you need to keep the mass happy, and there is a mass out there for a Pro APS-C body!