Based on available information, the film "Summerland, 2020" does not appear to feature any identifiable transsexual characters or themes. The narrative primarily focuses on a reclusive writer during World War II and her past lesbian relationship, with no elements related to transsexual identity.

The movie does not contain any action or adventure elements.

Summerland (2020) is an original film with characters created specifically for its screenplay. There is no prior source material or historical basis from which character genders could have been swapped.

Summerland (2020) is an original film with characters created specifically for its screenplay. There is no prior source material or historical record establishing a canonical race for any character, thus precluding a race swap.