Currently, there is not enough information available to assess the film's portrayal of transsexual characters or themes. Without specific plot details or character descriptions, a determination of positive, negative, or neutral impact cannot be made.

The movie does not contain any action or adventure elements.

Palm Royale is an adaptation of the novel "Mr. & Mrs. American Pie." The characters, while originating from the novel, were not widely established in public consciousness or previous adaptations, nor are they historical figures. Therefore, no character meets the criteria of being "canonically, historically, or widely established" as a different gender prior to this series.

Palm Royale is an original series with new characters, not an adaptation of existing material with established character races or a biopic of historical figures. Therefore, no race swaps occurred.