Welcome, and glad you're enjoying it!
In terms of things like NPC marriages, relationships, children, and things of that nature... maybe. I think that it's out of scope for 1.0 of the game, honestly, as the focus there is more on the adolescent (in the literary sense) "hero's journey." That's in keeping with, say, most every adventure game (Zelda, I think Diablo, any sort of "save the world" game).
The more adult (again in the literary sense) themes about marriage, family, and those sorts of things are certainly something worth exploring, but they are a lot more complex and I think are worth waiting and doing right, rather than doing something half-baked that is really just sort of a... I guess trophy is the right word. Having the wife/pet/child be a trophy for your adolescent adventurer is really not something we'd want to encourage, as that's really not a very good social message in my view.
Not that we're trying to preach or really force any specific social agenda -- you're free to be a sociopathic psycho murderer in the game if it pleases you -- but if we were to represent something like marriage and children, the only way I could think of that being interesting is if we really put a lot of effort into it and did it right. That's taking the game to a whole different emotional plane, of course, and one that I think is really cool. It almost seems like an entire expansion for the game could be built around that, making almost a whole new game right in the existing base adventurer game.
I dunno -- it's fairly far off either way, I think, but it's interesting. Cheers!