I'm afraid I don't see it.
Most companies are loath to change the name of a successful product. Too much invested in it to just toss it aside. Heck, even with a brand as seriously damaged as the D600, Nikon didn't change the name.
Now, an APS-C cinema camera might get a new name, but that wouldn't be a true 7D replacement anyway.
This did get me thinking, though. What if the rumored big megapixel camera is really an APS-C camera of say, 30 mp or more? If if could offer clean ISO at up to about 1600, that would certainly breathe new life into the APS-C segment. Don't know if that is even possible (paging Jon Rista) but imagine the value of a camera with a built-in 1.6 crop and the resolution to allow you to crop away two thirds of the pixels and still have a 10 mp image.
That would be one serious sports and wildlife camera. Which is probably a much larger market than the market for a high megapixel full frame studio and landscape camera. It plays to the strengths of the APS-C sensor (reach) and the massive amount of research and innovation that we've seen in the past few years in cell phone camera tech makes me think the pixel density might not be a problem.