I believe the Ilmateri Forum may be public as I and others have access to it. No posts yet but it should be probably fixed before such starts!
It's visible to me but I can't access it.
Vault Shrike is clearly teasing us.
The Sanctuary Syndicate forum likewise now.
Not everyone can see them but it seems a fair few people not in the group are able to, from chatting with folks in #EFU.