Paranormal Activity: Next of Kin

Yes, Margot and Chris both survive the ordeal. During the chaotic struggle with the demon, Margot confronts her mother Sarah's possession and manages to push Asmodeus from Sarah's body into a wood-chipper. She and Chris then flee the farm together, escaping the burning Beiler property with their lives.

Sarah, who was possessed by Asmodeus throughout the film, does not survive the final confrontation. When Margot pushes the demon from Sarah's body and into the wood-chipper, Sarah appears to die as part of the ritual's disruption. The possessed Sarah is destroyed along with the attempted transfer process.

Samuel Beiler becomes the new vessel for the demon Asmodeus. After Margot and Chris flee and the farm burns down, police arrive to find chaos. Samuel, bloodied but calm, uses his newly acquired demonic power to control one of the officers' minds, compelling the cop to shoot himself. Samuel then drives away in the police car, now hosting the freed demon.

Asmodeus is not destroyed. The demon successfully escapes its original containment beneath the church and transfers into Samuel Beiler. While Margot manages to prevent the ritual from transferring the demon into her own body, Asmodeus finds a new host and drives away freely, implying the threat is far from over.

The police officer shoots himself because Samuel Beiler, now possessed by Asmodeus, uses demonic mind control to compel the officer to do so. This demonstrates that Samuel (as the demon's new vessel) possesses supernatural abilities including psychic manipulation, allowing him to force others to harm themselves.

The ending suggests Asmodeus remains a serious threat in future films. With Samuel as its new vessel, the demon has escaped containment and is now free to roam. The open gateway beneath the church and the burning farm indicate the demonic power has been unleashed, setting up potential crossovers with other demonic entities from previous Paranormal Activity installments.

Margot appears to be free from direct possession. She successfully resisted the ritual's attempt to transfer Asmodeus into her body and survived the final confrontation. However, her family history and the open demonic gateway suggest she may not be completely safe from supernatural consequences in future films.

The Beiler farm is destroyed by fire. After the chaotic struggle and the disruption of the ritual, the property burns down. The church where the demon was contained is also presumably destroyed, with the open gateway beneath it implying the demonic energy has been released into the world.