True enough. Obviously, that is the best case scenario and certainly possible. It'd be nice to see all 9'' (retail) cards using the A15 revision, just hope it doesn't delay the darn things longer.
On the other hand, if I were a high-end OEM, I'd be pissed with getting the ungodly hot/not clocking as well, huge-fanned, full-case sized pcb w/ beta-chip monstrosity to pitch in my machines. (Yeah, that was a bit over-the-top...)
I suppose we shall see how it unfolds.
Not as high clocking? That's assuming a bit, in fact I would bet its the same core clock and OEMs (even companies such as Falcon Northwest and Voodoo) rarely OC the video card and instead focus on the much easier CPU. So how high it goes over stock would be of little care as long as the card meets the stock requirements without burning a hole in the side of the case, which is why it probably has the monster of a heatsink. The cases would also be designed around the card internally so that should not be an issue as well.
Only in the retail would such a huge card really be an issue. Where people often times would not have the luxury of ripping out a hard drive rack easily to make the extra room.