Here is my entirely speculative take on what might be happening.
The new FF body is the new 70D and will look very much like the 60D. It will have a touch screen, as will all future Canon SLRs.
The 7DII will debut a new APS-C sensor and will essentially be an APS-C 5DIII. However, it will retain and probably extend its fps advantage over the 5DIII. It won't have a pop-up flash.
The Rebel line will remain but, since the M now caters for those wanting compactness, the T5i will grow a little in size - not to the size of the 70D but enough to be considered the 70D's APS-C equivalent.
I must admit, my speculation is driven by my inherent desire for neatness! - simplified upgrade paths for 70D and 700D owners, while strengthening the reasons to own both a 5DIII and a 7DII.