Square Enix has just announced the We Are Vanadiel website in preparation for Final Fantasy XIs 20th Anniversary. It is a celebration of everything FFXI, and will feature:

We Remember Vanadiel: A complete timeline of FFXIs history, from pre-release to current day, with developer and player commentary.

Source: N4G PC Square Enix Announces Final Fantasy XI 20th Anniversary website: We Are Vanadiel