I don't know for sure. Maybe he is, maybe he isn't. It depends on his schedule and other factors. Best to follow reliable entertainment channels for the latest.
It's hard to say if Joseph Quinn is coming to America Comic Con. Sometimes these plans can change at the last minute. Keep an eye on reliable sources for the most accurate information.
Well, it's hard to say for sure. It could be that he had an exciting interaction with fans, or maybe there was a special announcement related to his projects. You might want to look on social media for the latest scoop.
In the fanfiction, it's very possible that Puck would be at Quinn's side during labor. He has a history with her and would surely care about her well - being. Her best friends from Glee club would also be around. Rachel, with her big heart, would probably be there offering words of encouragement. Finn, being a good friend, would also show up. And Santana, who has a strong bond with Quinn, would be there to give her strength and sass when needed.