Seven of Nine is something of a mixed blessing for Star Trek: Voyager.
In some respects, the character is a transparent ratings ploy designed to refocus media attention on and attract young male viewers to a television series facing major audience attrition. The series already has enough trouble serving the under-developed members of its ensemble like Chakotay, Tuvok and Kim. The arrival of Seven of Nine only compounds this issue, with the character serving as a focal point in five of the first six episodes of the fourth season. Seven of Nine is a very cynical addition to the cast, an awkward band aid applied to a patient with a chronic condition.
However, there is no denying that Seven of Nine works as a character. Even is early in the fourth season, Seven of Nine is more intriguing and compelling than most of the primary cast. As early as The Gift, Jeri Ryan demonstrated that she was one of the strongest members of the ensemble. Seven of Nine might be an awkward combination of the Spock and Data archetype with blatant fan service, but she already has a stronger character and a clearer arc than the vast majority of the regular cast. The production team know what they want from Seven, which is more than can be said of Chakotay, Tuvok or Kim.
Indeed, The Raven further solidifies the character’s purpose and arc in the larger context of Voyager. Indeed, The Raven very cleverly and very literalises Seven of Nine’s character arc, doing so in a way that integrates her into the larger broader themes of Voyager. With The Raven, Seven’s journey to reclaim her lost humanity is rendered as a literal homecoming. Like everybody else on the ship, Seven is ultimately trying to find her way back home.