I don't have the exact information. But you could try looking on the Comic Con website or the Game of Thrones official channels for any news about their presence at Comic Con 2019.
Overall, the A Game of Thrones comic does a decent job. It visualizes the complex plot and characters effectively. Some details might be simplified for the comic medium, but it still retains the core of the story.
They are one and the same. Whether it's written as Comic-Con or Comic Con, it represents the same gathering of comic enthusiasts and the showcase of all things comic-related.
No, Comic Con International doesn't own Comic Con. Different organizations or entities might be involved in organizing and managing various Comic Con events.
Comic Con and Comic-Con are basically the same thing. They're both events focused on comics and related pop culture. Maybe the only difference is in the specific location or organizing team.