It's hard to say for sure. The number of Korra comics might depend on various factors like the popularity and demand from fans, as well as the creative plans of the publishers.
She could also get angry. Korra is a strong - willed character. After the shock wears off, she might lash out at Asami. She could yell and demand an explanation. She might feel that she has been wronged and wants Asami to know how much she has hurt her.
To be honest, I don't have an exact figure. But you can look up on popular comic book databases or ask in comic book enthusiast communities to get a clear idea of how many The Legend of Korra comics are out there.
The meeting could start with a sense of mystery. Itachi might appear out of nowhere in Korra's world. Korra, sensing his strange energy, would be on guard. Itachi would be sizing her up, taking in her appearance and the power he can sense within her. They might exchange a few words, with Itachi's soft - spoken nature contrasting with Korra's more direct way of speaking. As they start to interact more, they would begin to learn about each other's abilities and the worlds they come from.
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