1) 18MP is great for me. I'd rather have lower noise than more MP. Phase AF on chip sounds good!
Just out of curiosity, how would you use FPPD (Focal Plane Phase Detection) AF with a 7D-type camera? The value of FPPD is in Live View and Video...however if your shooting things through the viewfinder, a dedicated AF sensor is not only essential, its also probably going to be more accurate as it can be fine tuned to various apertures (such as the center five double cross type points at f/2.8, and the cross type points nearer to the edge of the AF grid that are sensitive down to f/5.6, of Canon's new 61pt AF sensor.) If you shoot a lot of video with the 7D (which I find curious...I'd definitely prefer something in the 5D line myself for video) then I could understand the value of FPPD in a DSLR...but its rather immature technology and due for a lot of refinement and perfection before I would trust it for full blown low-light AF acquisition and tracking like a dedicated AF sensor is capable of.
2) The current 19pt AF system works very well for me. Ok - extra AF points = handy (I like wide frame coverage)
As for the current 19 AF points of the 7D, they are certainly better than Canon's ubiquitous 9pt systems, but rather vastly inferior to a reticular AF system...either the Nikon 51pt system or Canon's 61pt system are so much better, particularly for multi-point tracking, than the 19pt system with all the unused space between each point. Its not just about frame coverage, although that is certainly nice...its about density...and the 7D is certainly lacking against both the new entries in Canons pro line as well as quite a few bodies from Nikon's cameras released over the last few years.
3) 10FPS. Nice. As long as I can choose eg 3fps, 5fps, 8fps and 10fps. But 8fps is enough.
Not sure I agree 8fps is enough...there are plenty of times that I've shot BIF and other bird moments (and even wildlife) in action and missed the best moment, as it was between frames. Wouldn't have that problem with 10fps, at least not as much. Totally agree about being able to configure the low speed AF mode.