Korra looks up at him in surprise. "Really? You...you would do that?"

It's not that she thinks Lord Zuko doesn't care, it's that Republic City technically isn't under his jurisdiction. But with Raiko and the other major figures of the city gone, Korra thinks his help will be invaluable. She has no idea what is needed to keep a city running, and technically she shouldn't even go near politics because of who she is.

Korra places her fist in her other palm, giving him a bow. "I'd be grateful for the help, Lord Zuko."