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The war for Kattegatt is currently anyone's to win, but the anticipated arrival of a fan favorite Vikings character may sway the tides.

When Rollo (Clive Standen) returns later this season, he will be a changed man, having embraced his new role as the Duke of Normandy — and all the power that comes with it. Rollo's new power is exactly the type of force that has the ability to change the fate of the brewing civil war between Lagertha (Katheryn Winnick) and Ivar (Alex Høgh Andersen).

But who will Rollo be more inclined to help: the woman he used to love who's trying to uphold his brother's legacy, or two of his nephews who are fighting to destroy that which Ragnar held dear? The answer may surprise you.

Vikings airs Wednesdays at 9/8c on History.