Well, we do know that needing additional hands for X reasons is currently the main reason for Dwarven pop growth, so adding a bunch of necessary patrols (to keep Skaven/greenskins from popping up in the basement) and/or a might need of workers for restoring facility Y (there's a bunch of defunct things like smelters/forges/etc. in K8P) probably isn't too bad a strategy for boosting pop growth.Unless, I suppose, news of getting the hat trick to retake 7 of 8 Karags of K8P is enough to set off a baby boom in the Karaz Ankor. Hopefully nothing gets dwarves randier than murdered Skaven and revanchist philosophy
Probably not across the entire Karaz Ankor, but I wouldn't be surprised if there was a baby boom among K8P dwarves.