The film 'Belle and Sebastian: Next Generation' does not include any discernible LGBTQ+ characters or themes. Its narrative focuses on a young boy's adventure with a dog in the mountains, without incorporating elements related to queer identity.

The film 'Belle and Sebastian: Next Generation' does not include any identifiable transsexual characters or themes within its narrative. Consequently, there is no specific portrayal of trans identity to assess, resulting in a determination of N/A for its net impact.

The film is a family adventure story focused on a boy and his dog. Female characters primarily serve supportive roles and are not depicted engaging in or winning close-quarters physical combat against male opponents.

The film introduces a new protagonist, a young boy named Sébastien, who is a new character in the 'next generation' storyline. The dog Belle remains female. No established characters from the original canon are portrayed with a different gender.