It wasn't successful enough for Universal to warrant continuing to do it from what I know. It didn't draw that many people staying in hotel rooms, but merely AP holders who wanted to cosplay. They also weren't getting any new film attendees. It was the same ole, same ole bottom of the barrel from the Potter universe that they always get to be involved. I remember Fantastic Beasts 2 had a film coming out the last year of the event and there was almost no mention of it at the event. Having some of that cast there would've made it feel like they were focusing on the future a bit while also looking at the past, but they didn't even get FB cast out for this thing.
It also wasn't that much of a "convention". There was a few speakers and a showcase in a sound stage or two, but there wasn't anything overly special about the event that you *had* to be there to see (kinda like Hyperspace Hoopla was for SWW was the must see thing... as much of a hot mess as it was).
