I think if they have 400,000 docs to leak..Leak them!
It seems the longer they pussy foot around the more they open themselves and a lot of innocent people who are willing to fight for freedom of speech to US and CIA threat...and the smearing etc.
Are they pussy footing because they want to keep it in the news for an extended period of time or for leverage when the US makes a move and arrests Assange....hence using the leaks as a bargaining chip....in which case accusations of lies will result, which will negate many of the leaks as revenge and that's all.
It is death by a thousand cuts... and it's a great strategy.