- brought Lane's rock lifestyle into a nice internal conflict with her Mum's Christian Korean values;
- given Paris a boyfriend;
- set up a second nuclear explosion between Lorelei and her mum in the form of a tell-all interview;
- sexually matured all three of the show's younger generation of women; and
- established that Luke's willing to marry Lorelei AND that Lorelei probably wants more that Luke can offer her (promising a painful choice in the latest season).
Finally, the show-runners have reversed the class choice I thought was coming for Rory. She's found out she lacks sufficiently good breeding to date a Huntzberger. Not only does this put her in the position of Dean, her ex-boyfriend, but it's a consequence of forcing her current boyfriend Logan to be faithful (which goes completely against his character and seems set to end badly). And out of all that, Rory has just been given the option of starting down the road to become a journalist - which is going to have to be a real good offer, given how hard she's worked to get into university.
One of the ways you can judge show is by the quality of its complications. The things that Gilmore Girls is setting up blow The O. C. and Desperate Housewives out of the water (but only in terms of attention to character, theme and originality). Should be a real interesting season finale in four episodes time.