Another take, with no more or less evidence as far as I can tell: He essentially had no choice, as it was obvious he was going to be railroaded at any trial, and would likely be bounced to the US at some point.
From Sweden?
He fled Sweden, which has stronger protections against extradition, for the UK which has weaker protections. Had he been extradited from the UK to Sweden, further extradition to the US would have been prohibited.
It happened. He was proven correct.
The people who disagreed were just wrong.
And I think it is OK to call the people who didn't believe this, to have been extremely misinformed.
In other words, the legal avenues that the moron could have availed himself of a decade ago are now open to him.
If anyone thinks that Assange was ever in danger of being extraordinarily renditioned to the US from Sweden then they need to consider that a decade ago he was high-profile enough for the Ecuadorians to stick their necks out for him.