I, too, am excited to see what happens with jQuery. It's gotten to the point now (between the main lib, jq UI, and jq mobile) that the little snippets people extract from jQuery are becoming their own micro libraries, which is super cool. I've seen some things on github start as simple jQuery plugins and then be extracted into their own smaller library, basically. It seems like jQuery will become like a launchpad for developing smaller, as-needed libraries/frameworks. It'll provide the groundwork of something, and then once that something is perfected, all the rest of the bloat will be removed. Pretty neat, and I've found myself doing this twice in the past few months already.

I also think the jQuery source code will become more of a learning tool in the future; I've picked up so many neat things within JavaScript just by checking out some jQuery source, reading the comments, and then researching that particular thing on my own.