He is, however, violating the conditions of his bail in the UK and I don't really see why we should offer any special dispensation just because he's been "hiding out" for a long time[1].
Anyone violating bail should expect to spend the rest of their life under threat of arrest and not assume they can make it go away by hiding out for a few years.
[1] it'd be nice if we put some political pressure on Sweden to resolve the issue remotely but that's neither here nor there.