'Sister Wives' season 8 air date, news,: The Browns to face jealousy, wedding preparations, and an unexpected engagement next season

A promotional image for "Sister Wives"Facebook/SisterWives

After TLC announced that the Browns will return for the eighth season of "Sister Wives" this November, speculations about the discord between the polygamist family started to come out.

According to reports, Kody Brown's wives are not in good terms with each other because of jealousy.

One of the speculations claims that three of Kody's wives are irritated with the way he focuses his attention on his only legal wife, Robyn, especially after she gave birth to their newest daughter, Ariella Mae, in January.

On the other hand, Robyn's former close friend, Kendra Pollard-Parra, reportedly dropped the bomb about the family in a tell-all interview with In Touch Weekly back in April, saying that the chaos within Kody and his wives Meri, Janelle, Christine, and Robyn is getting worse. "The family is arguing constantly," Kendra stated in the interview. "They pretend to be happy for the show, but the family is a mess."

Kendra also revealed that Kody wants to keep TLC interested in featuring his family in the show by plotting to look for a new and younger wife. According to the former family friend, Kody even asked her right in front of Robyn if she is interested in becoming his fifth wife.

She also mentioned that Kody is also planning to drop one of the other wives in order to keep "Sister Wives" relevant to prevent the cancellation of the show. "Kody's main goal is to keep the series going and to make money. He's a snake," Kendra stated.

Meanwhile, the sneak peek for the next season of "Sister Wives" showed the family's preparations for the wedding of Kody and Janelle's daughter, Madison, with Caleb Brush. The trailer also revealed that Kody was very concerned and worried about the relationship between his and Christine's daughter, Mykelti, and her boyfriend, Antonio, especially since the two have started to talk about getting married.

The premiere episode of "Sister Wives" season 8 is slated to air on Sunday, Nov. 27.