In addition to tying Leda and Castor together, I think it could be played as a metaphor or sign for why Castor is dark and anti-life while the Leda clones are fighting for light and survival.

So how long has Helena been pregnant? Will she start to "show" soon? She certainly hasn't been hampered by morning sickness or tiredness in her exploits. Are they setting her/us up for a tremendous disappointment when she's not pregnant at all (though she did test preggo in the desert for Coady)? And how about…