Queen Aslaug and Rollo to take centre stage in 'Vikings' Season 4.Instagram/Alyssa Sutherland, Twitter/Clive Standen

"Vikings" will be back on History Channel with season 4 and is likely to focus on new developments in the lives of Queen Aslaug (Alyssa Sutherland) and Rollo (Clive Standen).

While Ragnar Lothbrok's (Travis Fimmel) brother is getting ready to wed Princess Gisla of West Francia (Morgane Polanski), his wife might take up new responsibilities until he recovers from his wounds. But the biggest question is whether Standen's character will follow the footsteps of his brother or not.

Although the skilled warrior was against the christening of the King, he may also decide to convert himself for his own personal benefits. During the Monte-Carlo Television Festival, actor Standen teased crucial change for his character in the upcoming season.

"The reason I haven't got long hair now is a big, big plot spoiler for season 4. That's going to be part of the uphill struggle that Rollo has essentially because the French Princess Gisla (Morgane Polanski) is not actually a big fan of the Vikings, let alone Rollo. So he has a mountain to climb and he's going to have to win her to his side," Enstarz quoted him as saying.

Meanwhile, Standen also stated that the team has finished filming five episodes of the fourth season. "We're doing 20 episodes this year. So we're in it for the long haul for season 4," he added.

However, the chances for Rollo to join back "Vikings" is very less as creator Michael Hirst indicated that Aslaug could be leading the team in the upcoming season. "She's had a taste for power while he's been away and when we return in season four, we'll see that she's enjoying that taste," he told The Hollywood Reporter.

Hirst also revealed that Fimmel's character might have some bitter experience from his wife.

"Aslaug was the daughter of a very famous, almost mythic Viking hero who killed a dragon, according to the sagas. She's reconnecting herself to her Viking roots, which is to some extent making her a darker character but it's also giving her a purpose and strength. Ragnar's got to bump up against that. She is much more her own woman," he said.

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