As of my last update in October 2023, there is no movie titled "Underworld 2025." The latest film in the "Underworld" series is "Underworld: Blood Wars," released in 2016. "Underworld: Rise of the Lycans," which is a prequel to the original "Underworld," stars Bill Nighy, Rhona Mitra, and Michael Sheen. If you meant a different film or project related to the "Underworld" franchise scheduled for 2025, please provide more details!

In "Underworld: Rise of the Lycans," Selene does not appear as the film centers on the backstory of the war between Vampires and Lycans. The movie is set in the Dark Ages and focuses on the character Lucian, the first Lycan, and his relationship with Sonja, a vampire. Selene, played by Kate Beckinsale in other "Underworld" films, is not part of this narrative, as it takes place long before her time in the series. The film is primarily about the origins of the conflict and the rise of the Lycans against their vampire oppressors.

As of my last update in October 2023, there has been no official announcement regarding a new "Underworld" film following "Underworld: Blood Wars," which was released in 2016. However, there have been discussions and interest from fans about continuing the franchise. The series, which explores the conflict between vampires and Lycans, has a loyal following, and while creators have hinted at potential future projects, no concrete plans or release dates have been confirmed. Always check for the latest news for the most current updates.

In "Underworld: Rise of the Lycans," Lucian and Sonja do not have a child. Their relationship is central to the plot, showcasing their love amidst conflict between vampires and Lycans. However, their tragic fate ultimately prevents them from having a future together or starting a family. Sonja is killed by Viktor, which leads to Lucian's rebellion, but there is no indication that they had offspring. The film focuses more on their love story and the broader conflict rather than any potential descendants.