"We" have practically everything, yes.
Here are the major categories of data on gna.org:
- Source code history (svn): backed up to Freeciv hosting, my computer, and my personal backups, refreshed at least once a day; not anywhere public. (I'm working on a git conversion.)
- Download area: backed up on Freeciv hosting and visible at http://files.freeciv.org/ ; also backed up to my personal backups.
- Ticket history: backed up as XML dumps once a day, on Freeciv hosting; attachments backed up ad-hoc, about once a day, on my own provision; both ending up in my personal backups. Will probably be some time before any of this is back online in any form, as it will require work.
- Public mailing list archives: backed up in redacted mbox form on Freeciv hosting (refreshed once a day) and my personal backups. Also available publicly (along with pre-Gna archives) via NNTP on news.gmane.org.
I've also got some ad-hoc scrapes of things like project pages.
Should Freeciv hosting and my backups all go under a bus, a couple-of-months-old copy of source code history and the download area can be dug out of archive.org
(courtesy of Archive Team