Amidst the release date rumors of the upcoming episodes of "Vikings" season 4, few reports stated that the second half of the remaining season will be more battle-oriented.

Game N Guide reported that the action-drama series will witness a fierce battle between Halfdan the Black and King Harald Finehai. The battle rumors were teased by Jasper Pääkkönen, who plays the character of Halfdan the Black. He posted an image on Instagram showcasing his blood and dirt-covered selfie along with Peter Franzen.

Moreover, another lead character, Alex Anderson, who plays Ivar's character television series, posted few behind-the-scenes pictures on social networking site showcasing new looks and bloodier make-ups of the characters in the upcoming episodes of "Vikings" season 4. HOF Magazine reported that the second half of the season 4 might witness a truffle between Ivar and Kattegat's people as well.

Besides, some reports hinted that Ivar will play a key role in the second half of the drama series. Movie News Guide reported that season 4 will showcase Ivar's journey towards becoming a great leader. Also, the trailer showed Ragnar telling his son Ivar about his potentials and skills.

Even Katheryn Winnick, who plays Lagertha's character, teased an action-filled season 4 by posting a snap on her Instagram account. "Back at work," captioned Winnick. "The art of trying to look like badass warrior! But not to get burnt."

Meanwhile, there are reports that the upcoming episodes of "Vikings" season 4 will also throw more light on Ragnar's storyline. Reports suggested that the new episodes will witness the rise and fall of the lead character. According to the creator of the show, Michael Hirst, Ragnar's death will not be shown anytime soon and his story will be of prime importance.

The episode 11 of "Vikings" season 4 is expected to be aired in the last week of July.