As to what is going on with Truecrypt.org, two members of the audit team, Matthew Green, who apparently is a skeptic of Truecrypt, posted this comment:
Matthew Green @matthew_d_green
I have no idea what's up with the Truecrypt site, or what 'security issues' they're talking about. @kennwhite
Matthew Green @matthew_d_green · 15h
.@leEb_public @mattblaze The audit did not find anything -- or rather, nothing that we haven't already published.
For which Kenn White tweeted:
Kenn White @kennwhite
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Same here. A site that's been maintained for 9+ yrs going static w/ a redirect to SF seems out of character, but no idea. @matthew_d_green
Krebs on Security is also reporting that in a phone interview with Matthew Green, that he thinks the anonymous developers may have decided to end the project.
Matthew Green @matthew_d_green · 13h
An alternative is that somebody was about to de-anonymize the Truecrypt devs and this is their response.