MacBandit:
I think they will take it all the way. It's really a mistake when people call these point releases in the sense of point releases from the 90's. Point releases are now 10.x.x not 10.x.
Au contraire, it is the modern version-numbering scheme (in most places) where you see version-number inflation taking place.
System 6 only spanned the range from 6.0 to 6.0.8, never even making it to 6.1. System 7 slid up the scale a bit more rapidly, going from 7.0 to 7.0.1 to 7.1, debuted on the PowerPC with 7.2(?) shortly replaced with 7.5, which incremented it's way to 7.5.5 before the final 7, 7.6, deposed it. MacOS 8, which in many ways was just late System 7 with nicer GUI and a multitasking Finder, arrived with more fanfare than readiness, and its bug-fix release, which should have been 8.0.1, was released as 8.1, which in turn was replaced with 8.5, another buggy system whose insects were squashed with the nice and stable 8.6. Which should have been 8.5.1. Except that 8.5 should have been 8.2, there was no quantum leaping going on there, which would make 8.6 into 8.2.1. Except that 8.1 should have been 8.0.1, so 8.5 would have been 8.1, making 8.6 at this point logically named 8.1.1. Except that MacOS 8 should have been System 7.7....well, you get the idea.
MacOS 9 sure wasn't a quantum leap either. Call it, I dunno, how about System 7.9, that feels about right.
Dont' even get me started on Photoshop (excuse me, 8??), FileMaker (6??), Bryce (oh please)... version inflation everywhere you look.
Frankly I'm very happy to see Panther coming out as 10.3 and not MacOS 13 or something.