He jumped bail because the UK was going to deport him to Sweden, and Sweden was likely to deport him to the US, where he'd be Manninged before (eventual) trial.
Jumping bail isn't a crime in the UK. It simply means the gov gets to keep your bail money.
If Sweden drops charges he'll be free to go, unless the UK can manufacture a pretext for extradition (always possible) or the US sweeps him off the street (also possible, but unlikely to make the US popular with European countries who are already unhappy about being spied on.)