'Sister Wives' season 7 spoilers: Meri and Janelle try to start afresh in Hawaii; Family adds one

"Sister Wives" stars Kody Brown with his wives and new baby Ariella MaeTLC

Meri and Janelle continue to bat heads in the next episode of "Sister Wives" season 7. After the Thanksgiving drama that put them back to square one, the two still attend therapy, but things aren't going smoothly.

Kody's former legal wife knows that it will be tough to reconcile knowing that table centerpieces and decorations make them clash.

However, she is hopeful that their vacation in Hawaii with the Brown family, which fans will get to see in the next "Sister Wives" season 7 titled "Meri Makes Amends," will somehow allow them to take a step further in reconciling.

"I wonder, Meri, if we actually break new ground and interact and actually do something on the vacation?"Janelle said in the promo for the next "Sister Wives" season 7 episode.

Meri, on the other hand, is not optimistic about it. "I have no idea what we could do in Hawaii," she admitted. But judging by the title and her next remark, she might just do her part despite her doubts.

"Maybe we could go to the beach and see if we could build a sandcastle together. I don't know," she went on to say in the "Sister Wives" season 7 promo.

Whether or not the two will finally reconcile, only time will tell. But things are not looking all too bleak since the two appear to be willing to set aside their differences.

In other related news, the Brown family continues to get bigger and bigger. While fans already know that Kody's fourth Robyn gave birth to baby Ariella Mae, the series will show fans how she got there.

In Sister Wives" season 7, Robyn has gone into labor. It turns out, despite Robyn giving birth to her and Kody's second child without complications, there were fears about the baby's health.

The Brown family was worried about a breech birth, where the baby will be delivered feet or buttocks first. But as it turns out, the newest member of the polygamous family was welcomed to the world without a hitch.

The celebration does not end with Janelle's daughter Maddie getting hitched with her boyfriend Caleb Brush. However, she has already expressed her unwillingness to engage into polygamy.

"Sister Wives" season 7 airs every Sunday at 8 p.m. ET on TLC.