I don't understand the resistance to a design change. I think a subtle, evolutionary design change is inevitable. (Form factor is another question, but aesthetic changes with more advanced hardware features in much the same form can equal "radical design change" as much as a form factor change.)
The flip version seems like a bad guess, but I wouldn't be surprised by a QWERTY keyboard slideout. (Many have been rumoring/hoping for a iPhone "nano", I think an iPhone "Pro" makes much more sense.) Add a keyboard slider at the top-end, and Apple eliminates the last complaint of many, particularly enterprise users. With the new enterprise features, it makes perfect sense, and if Apple makes a landscape touch keyboard a more pervasive element of the UI (another much requested feature), not only would a hardware keyboard be easy to add into the system, but you can imagine how it would elegantly and unobtrusively integrate with the iPhone OS (when the touch keyboard is onscreen, slide out the keyboard slider and the software version slides away, giving more screen real estate -- another plus).
Trashing keyboards wouldn't be a huge issue for jobs. It's not like he's obverse to reversals and feignts. The point was to get people to shift to and accept touchscreen keyboarding. To emphasive the ability to provide adaptive input methods and UIs through the large touchscreen instead of dedicated keys that limit and confuse software UIs. Adding a keyboard will just supplement these values and doesn't work against it.
I don't see it as hurting Apple's design goals and directions at all, would eliminate the biggest complaint while providing a high end option (which Apple always loves) that they could even add 32 GBs too if supplies are constrained (and a huge price tag), and it would be the smartest decision I could imagine for them. Not a "NO WAY!" scenario at all.