Doesn't sound very enthused about the whole idea.
Nothing in her known personality really hints either way at her opinion on being a mother, because she never mentions it in any capacity outside that one off-hand comment.
I don't know, she's pretty enthused about the ideal romance. Traditionally, the ideal romance entails kids at some point. I think she'd be open to having one or two with the Inquisitor, depending on whether it was a time of peace or not.
Also this. The world isn't imploding in on itself for the first time in years, and Cassandra has finally found someone that she is happy with and who loves her back. She might consider it or she might not, who knows.
I admit though, does Thedas have an equivalent to Valentine's Day? The closest thing I can find is Summerday, which is the time people tend to get married. Also Wintersend, which is the time people tend to get engaged.