I would have liked to have seen Korra spend the second season on a quest to regain her lost elements.
Everybody's saying that. But didn't we already have a series like that? The idea behind TLoK is to tell new kinds of stories in the Avatar world. I'm more interested in seeing what new ideas they come up with now. There's still plenty of stuff worth exploring in Republic City, plenty of problems that still need to be dealt with. I bet that once people have seen the second season, they'll be glad it wasn't just a rehash of what Aang already went through.