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.
Well, 'Harley Quinn's New Companion' is a fanfic that stands out. In this story, the reader gets involved in Harley's adventures in a really immersive way. The author does a great job of showing Harley's complex emotions towards the reader. There's also 'Harley and the Reader: Unlikely Allies' which shows how the two characters, who seem so different at first, end up relying on each other.
There are indeed. Look for ones that have high ratings and reviews. The best ones often delve deep into the personalities of Harley and the Joker while also creating an engaging relationship with the reader. For example, some might show the reader getting caught in the middle of Harley and the Joker's tumultuous love-hate dynamic.
Fantasy elements are also common. Sometimes, the fanfics will place the reader and Tyler in a magical or alternate world. For instance, they could be in a world where music has the power to heal and they go on a journey together to use this power for good.
One popular trope is the 'enemies to lovers' scenario. Maybe they start off as rivals in the fictional world of the fanfic, perhaps competing for a role or something similar, and then gradually fall in love. It adds a lot of tension and drama to the story.
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.