I'm still perusing this "Systems" panel recap, which you wouldn't expect to include crafting-related goodies. But in the course of describing some of the new systems they are implementing for Cataclysm, they are tossing out extra tidbits that are relevant to us. Bear in mind that Cataclysm is at least a year away, so the mechanics mentioned here may not be the final implementation. I still find it interesting tho :)
Archaeology will allow you to find and turn in artifacts, which will be used to earn "Ancient Glyph" sockets. Ancient Glyphs are not like Inscription glyphs, they are part of the Path of the Titans system. According to the recap, you'll be able to progress down your chosen "path" in a number of ways such as questing, raiding, PVP and trade skills. The description I heard yesterday made it sound like finding artifacts was the only way to progress the Titan path, so this is an interesting twist.
It says that the Titan system will be available to players at max level, which looks like you won't be able to even start leveling Archaelogy until you reach 85. If so, that's unfortunate because you'll be doing lots of exploring and quests while you level up, maybe not so much once you reach the cap. I know my druid does very little solo play now that she's 80, she's mostly a raiding toon. I still do quests on other toons, but again that's because they are still leveling/gearing up. So I hope I'm understanding that part wrong, I think lots of people will check out Archaeology right way. Having to wait several weeks to even unlock it could be off-putting for some players.
Too bad I'm not at Blizzcon to ask burning questions like this!