Operation: Repopulate is progressing slowly, but surely. Several of the previous generation's children matured into adults, so I now have 3 breeding pairs, and the fortress population is up to 24. Unfortunately, the formation of any additional pairs is unlikely, as most of the remaining dwarves are either widowed, age-incompatible, not straight or not interested in romance. I am trying with one more pair, but as one of them "does not easily fall in love" and the other "finds romance distasteful", I'm not holding out much hope.
I had all the kids who grew up as peasants try their hand at armor/weaponsmithing, hoping to have one of them get an useful mood. No luck so far, instead a miner got possessed and created an artifact millstone.
EDIT: Well, seems like I'm in luck today - the romance-averse couple finally married, and I now have both a legendary armorsmith and weaponsmith (as well as a very nice iron breastplate and warhammer).
EDIT2: Tragedy struck just as things were finally starting to look good. One of the breeding females, along with her baby, got into the caverns somehow and is now being chased by a forgotten beast. How she managed that is a mystery to me - the only entrance has been sealed for more than a decade now. My only guess is that she fell into the well somehow? But it makes little sense. As far as I'm aware, dwarves only fall into wells when they dodge into them during a fight, and there is no record of her fighting recently, nor any reason why a fight should have occured at the well. Regardless of the reason, she and her baby are now almost certainly going to die.
EDIT3: Annnnd yep, even though I unlocked the hatch leading into the caverns, she couldn't make it in before she got caught. At least she died satisfied:
I've had the well sealed off for now. No real need for it anyway, we have enough booze to last for years.