Trivia: Shortly after the battle begins, Bard rides to Dale to look for his children. A woman tells him she saw them in the old marketplace. When he starts to go there, a man comes running and shouts 'the Orcs have taken Stone Street'. That is an in-joke: Stone Street is the name of Peter Jackson's film studio.
Trivia: Fans may be unaware that Billy Boyd, who played Pippin in the Lord of the Rings movies, sings the end-credit song, "The Last Goodbye."
Trivia: This film has both the final acting role for Ian Holm, who played the older Bilbo, and the final live-action role for Christopher Lee, who played Saruman. (His only roles after were voice-overs.) Holm passed away in 2020, while Lee passed away in 2015.
Answer: In both the novel and the movie, Alfrid's (who is not named in the book) fate is unknown. Beorn, in the book, stopped his reclusiveness and became a leader of the local woodmen and protected the area from orcs and goblins. He died sometime before the War of the Ring and was succeeded by his son Grimbeorn.
Greg Dwyer