Yes and the Swedish warrant should take precedence. However, you have a weak PM combined with strong US pressure, so that may be over-ruled. Don't be surprised if Assange (TM) flies west and not east.
He is in no way a journalist. At best, he's a intermediate source. Journalists take responsibility for what they publish, after appropriate fact checking, review and consideration. Assange put peoples lives at risk when he blanket released information including names of active undercover agents in hostile countries. Whatever good he did in the past (when he released the video of the Reuters journalists being killed by a US helicopter gunship) has been over-written by multiple idiotic and self-serving narcissistic actions since.