[@Stormyx]

As I've stated before, J'onn would not want to go to this event because he will want to get out of his green form and get back to hiding as soon as things calm down unless he's very much cajoled into it somehow. Besides, I also imagine the regular police force would be called in to help with getting the city back into order and so he'd be called in as part of that.

Cay'an would though definitely fly over to become someone's plus one/escort for the gala. If there's any rich guys at the ready for that, feel free to let me know.