Thy End is Nigh
We can take this development as an indication that Assange is preparing himself for the inevitable.
He can bring the matter to a close - either by voluntarily handing himself over to UK Authorities, or by doing himself in - the latter option is the most effective in protecting Wikileaks from discoveries by investigations once under lock and key.
The other is the old fashioned method were an individual, long beyond their days of value and more an irritant, and disposed off in a suitably underhand way.
Either way, all parties concerned will be glad to see the end of this sorry little individual.