Seska could have been a great villain.
But later on they made basically her entire story arc about Chakotay.
Instead of actually telling the story about someone that was far from her people, having already been isolated from them a long time undercover. Literally looking like her enemy. That is such an interesting concept to explore an identity. Seska tries to get home, but she has a completely different sets of morals and ideas about the world than Captain Janeway.
A continued comparison between Seska and Janeway could have been very good. We could have seen Janeway’s struggle between morality and pragmatism so far from home, set against Seska’s continued aggression towards Voyager because she knows that’s her best way to get home as well.
We could have had an exploration of two characters that are equally stubborn, equally crafty and equally determined to reunite with their people.
As time moves on, Janeway became more pragmatic. But does Seska become more compromising? Does being so far from home means she also slowly changes? Just as Janeway is far away from the backup and the black and white moralism of the Federation, Seska is far away from Cardassian dichotomies of war (We and them, never compromise, everything for Cardassia).
Seska could have been great. So many possibilities to explore.
