They haven't popped back up. He's being prosecuted for evading the original arrest. Of course this is obviously just a pretext for the US getting their foot in the door.
No, he's been convicted of breach of bail in England; the Swedish prosecutors have reopened their investigation into the rape offence and have mentioned they are likely to seek extradition after he has completed his sentence in England.
That link doesn't say anything about rape charges, just the charges for failing to appear in court.
The article also slyly paints him in a negative light just for resisting what he considered to be an unlawful arrest, which is the natural right of any human being.