People have started to send "real life" info : https://bitcointalk.org/index.php?topic=2000113.msg20603056#msg20603056 but I have not found a clear description of what that is? So I sent a scan of my passport yesterday to david@iota.org, but had no reply.
But today there is more: a new wallet with a change of address generation process, came out, for security reasons, Iota transitions from addresses generated with CURL to addresses generated with KERL.
https://blog.iota.org/new-gui-transition-phase-explained-b536ed80f412
For people with IOTA, the situation is clear (read the post of the link above), follow step by step the instructions.
But for people like us, waiting for a major payment on a previous CURL address, I do not know what is the best to do...
Nothing if the security issue is not too urgent and we can transition once our claims will be proceed... or send david@iota.org a KERL address with usefull info by email... this would be safer but may increase his difficulty to collect, store, verify manual claim infos.
In a normal situation, I would say, let's wait for instructions.. unfornately, nothing normal here. I hope someone with intact relationships will ask and report.
On a positive note, CFB suggested that our time is approaching : https://bitcointalk.org/index.php?topic=2000113.msg20697286#msg20697286