Yes, migration of all the content to AO3 through the Open Door project was one of the things
morgandawn proposed to the site owner, we just hadn't heard back. It does seem like one of the best ways to save all the fic because they have a longer term plan. A lot of the authors are already on AO3 as well. It's the ones that aren't that we're concerned with and AO3 has permissions all figured out.
It's a matter of having access to the site and permission to go ahead.