Yes! Harold!! That was his name. I remember being rather displeased when he died for no good reason. Just canon fodder from the mostly-forgotten corner of the Cave. I have no issue with death in a narrative but I do hate waste.
Someone's gotta help out around that place. And I'd be quite happy if it were Harper. I dont want or need her in costume but she'd do well handling many of the Cave's day-to-day requirements and repairs and she knows how to fight and defend herself so when the villains show up it's not just poor Alfred with his shotgun.
Though I also don't mind the idea of putting her in the Arrow family with Dinah. Black Canary and Bluebird does have a nice ring to it. I feel like there might be a bit too much overlap with Roy, both in terms of general attitude and weapon/s of choice (Roy should never be Red Arrow in my book; always the gun-totting Arsenal) but Harper would still be a solid addition.