Oh yeah, the premiere was great. The best parts were Kalf turning on Einar and Rollo surveying the destruction he was raining down on the Vikings like a boss. It's interesting that he essentially chose the French over his own people even though he doesn't seem particularly happy in France.
It's kind of sad how Ragnar and Auslaug despise one another now. Auslaug clearly believes the Seer's prophecy refers to her, but I wonder if it'll be Lagertha who runs Kattegat in the future.
Bjoern leaving will be interesting. I assume we'll be following his adventures. At least, I hope so.
Lots of potentially interesting political intrigue has been set up. *Rubs hands together in anticipation*