You know, those are cool questions and observations. While I'm pretty much on record as saying, repeatedly, "no G5 PowerBook until sometime mid/late 2004...", it is indeed fun to wonder "what if...".
Been SO long. And as you said, why didn't they hold off for another couple of months and intro all three models (15" along with the 12" and 17") at MWSF in the new aluminum bodies.
Could they have been working on this all along?
I don't know, just asking...
Talk about everyone freaking out if that came to be!
Here's something too: why weren't the new 12" and 17" models just smaller and larger variations on the TiBook? Whole new body and style. Maybe Apple has built these aluminum models to currently house the G4 stuff, BUT with little-to-no-modifications or redesign, they'll also serve as the bodies that the G5 will go in when the PowerBook does ever go to that?
You've got your two pro lines both sheathed in matching skins (the same way the iMac and iBook share the white plastic thing).
No, I honestly DO NOT expect a G5 PowerBook ANYTIME before sometime well into 2004. But holy smokes, WHAT if the reason for all this delay and obvious discrepency between the features/styling of the 15" compared to the other two models had something to do with this HUGE surprise or something massive Apple has up its sleeve?
I still think we're looking at G4s this next time or two around, don't get me wrong. But it's fun to temporarily put on your "okay, just imagine if..." hat every once in a while...