Due to the complete absence of plot details, character information, or any specific web search results, it is not possible to evaluate the film's portrayal of LGBTQ+ characters and themes. Therefore, an assessment of its net impact cannot be made.

Currently, there is not enough information available to assess the portrayal of transsexual characters or themes in 'Gemini, 2016'. Without any plot details or character descriptions, it is impossible to determine if such elements are present or to evaluate their impact.

There is insufficient information available about the plot or specific scenes of 'Gemini, 2016' to determine if any female characters engage in and win close-quarters physical combat against male opponents. No plot details or fight descriptions are provided.

There is no information provided about source material, prior adaptations, or historical figures for 'Gemini, 2016'. Without a pre-existing canon or historical record, it's impossible to determine if any character's gender was swapped.

The provided information for 'Gemini, 2016' does not include details about source material, prior adaptations, or historical figures. Without a pre-established canonical or historical baseline for character races, it is not possible to determine if a race swap occurred.