I just started my second village a couple of days ago, but yes, you can keep multiple villages going. I check back on my first from time to time. It's at the max population of 90, so no breeding is successful until someone passes on. I'm in "normal" mode, so there really aren't any more problems. The Golden Child wanders around making parties, making more food, restoring crops, restoring the berry bush, etc., so it doesn't seem to require too much attention. I have it working at half speed now, and I check in from time to time to make sure my new 14 year olds get adequate training. At this point, I'm training only for farmers, breeders, and doctors, and keeping a couple of builders going, just to keep the huts in good repair. From time to time, one of the "extras" pops up for an option.