work of the WL core-team has reached the absolute point of no return. hence the release of the cables is inevitable.
what is also certain is the tier-1 publications of this release are: El País, Le Monde, Guardian, Der Spiegel and NY Times.
All of them are de facto ready for publication and some of them already have parts of their coverage on the printing press.
Hence late Sunday / early Monday (relative to GMT) the media reports will start.
WL itself will probably release either around the same time or delayed. and either as a whole or piece-wise in batches. (This is something even beyond Assange's control, it mostly depends on what his legal team will decide.)