The crux of Lost Girl has been a protagonist that defies expectations, and the slogan for the series is: "Everyone has vampires. We've got a succubus."
Besides positioning itself as a TV show that bucked the popular vampire genre followed by other supernatural and fantasy televisions series of the time, Lost Girl positioned itself as atypical from what you are served with other lead female characters. It also portrayed bisexuality and homosexuality as a fact of life that no one questioned or was surprised by, and non-"traditional" relationships were as valued and compatible as heterosexual relationships.
With this in mind — regarding the two lovers that have been a major element of Bo's emotional and sexual evolution since the conception of the series — will the final episode of Lost Girl be: "Everyone goes hetero. We went gay." ?