I didn't think I'd have another update since this one, with the possible exception of some fledgling activity in my yard (which I've seen but not captured on camera yet). But the robins surprised me!
Earlier this week, we noticed that there was a robin in the nest again, sitting on eggs! I'm guessing it's the same pair, raising another brood, though of course I have no way to know for sure. It's nice to know we were welcoming enough that she wanted to try again!