The Episode 10 of "Castle" Season 7 is Christmas-related episode. This episode is going to explore Lanie and Esposito's relationship. These two have been in an on and off romantic relationship since Season 3. In the current season, Castle's disappearance has brought Lanie and Esposito closer. However, the four episodes aired till now have not given any hint that they are dating each other again.

Citing a source, TV Line is reporting that Esposito and Lanie will "navigate a defining moment in their relationship" in Christmas episode. Chad and Dara Creasey have written Episode 10 of "Castle" Season 7.

TV Line is also reporting that Krista Allen has been roped in to guest-star in episode 9 of "Castle" Season 7. Allen's character is called Naomi Duvray. TV Line describes the character as a "former silver screen siren." The Episode 9 features the murder investigation of "a Stallone-like movie star." According to the report, Duvray has starred in a series of B-grade 1980s action movies and she is married to a character called Brock Harmon. Harmon, who used to be a regular co-star of the murdered star, is a front-man for a B-movie franchise, TV Line reports.

Meanwhile, TV Line had reported that Episode 6 of "Castle" Season 7 is "an alternative reality" episode. It asks the question what if Rick Castle and Kate Beckett had never met. It is a fun episode. According to Jon Huertas, who plays Esposito, the upcoming Episode 6 mixes a "great procedural crime with comedy" and the episode will imagine "a completely different world." This different world features all the major characters but the current set-up has been rearranged.

One of the November episodes is likely to feature the civil wedding of Castle and Beckett. The two were set to get married in the Season 6 finale but Castle disappeared on his wedding day. He returned two months later. The two months are still a big puzzle as Castle does not remember anything. The two have been taking baby-steps to get their relationship back on the normal track.