That would be pretty sweet: some of them had entries in Street Legends back in 4e. I would love another dragon book, too.
True, unfortunately the bulk of them did not, so an SR6 "update" would be nice.
Ideally, I would love to see an entry for all of them even those Dead/Presumed Dead with details of what they did in the 50s, the 60s, the 70s and currently (2080). This way this primer could be used with all editions and the planned Anarchy 2050 book
If you're just looking for the info that's already out there, Ancient History made a site that collected a ton of info on dragons, immortal elves, and the connections between Earthdawn and Shadowrun.
Ah yes, I love that webside, tons of great crossover information and details...unfortunately not up to date, but a great resource to have close at hand.