Can we just assume the Doctor’s ‘Fascinating!’ was a Star Trek reference?
After the Doctor addresses Clara, the father of the children asks: “Clara? Who’s Clara?”. Just like Sherlock! And then I imagined a-XXI-century-girl Clara, mentioning her ex, Harry. “She’s a drinker, we separated”. Also, the two Oswins we have seen are somehow alike. The final words, partly - their behaviour. So. Dalek Oswin said her first love’s name was Nina. Victorian Clara seemed to like being touched by Vastra (and who wouldn’t?). So, she’s not heterosexual.