Inside Matt Lauer's relationship with estranged wife Annette Roque one year after firing

Matt Lauer and his estranged wife, Annette Roque, are "all business" these days.

As the former couple continues to work on finalizing their divorce one year after he was fired from NBC News, sources are revealing where they stand with one another and how they're focusing on putting their children first.

Lauer and Roque, who share sons Jack, 17, and Thijs, 11, and daughter, Romy, 14, are still living on their beloved Hamptons property, with Lauer set up in the guest house. Friends of the former couple predict that they'll continue in their current set up until early next year, when Roque will likely walk away with the property -- and much more.

"Everybody's pretty sure he's going to have to give her the horse farm," a source told People. "That's her love."

"Eventually the plan is that he will move out of the house," the source added. "He's at the compound, living in the guest house, and he sees the kids. It's still the same setup for now. It'll continue that way until early next year."

Previous reports estimated that Lauer could also have to pay Roque upwards of $20 million in their divorce settlement.

"The divorce is still not final, but Annette will get a lot of money," an insider explained. "He took a financial hit with all this. Annette's going to get a lot of money."

Regardless of how their divorce ends up, Lauer and Roque are working together on what they think will benefit their children the most.

"He and Annette are co-parenting," another source told People. "They're just all business. They have to talk and they even spend some time together as a family, but when they do it's not about them. It's about the children."

The dissolution of their marriage comes two decades after they tied the knot in 1998. Though Roque first filed for divorce in 2006 after finding out about Lauer's alleged serial infidelity, the couple sorted out their differences for over a decade more. It was Lauer's shocking exit from "Today" amid allegations of sexual misconduct in the workplace that forced Roque to finally follow through on ending her marriage.

"By Matt's own admission, there were struggles and challenges with his wife," a source explained. "Like many couples, they struggled with a modern marriage."

"He was a player when she met him and she knew that," Lauer's longtime colleague added. "Even many years ago, he was a flirt, a philanderer. He did his thing."