I miss the Harry Potter heyday. I remember at the time I had a girl who was my best friend. I was hanging out in her room and she was chatting on some message board on her PC. I didn't have internet then and she was telling me about Potter message boards. She was laughing that everyone was "flaming" her for writing bad things about Snape and I said, "what are they sending you viruses or something" and she said no, they were just sending her angry messages, and we had a good laugh reading them. And she told me about fanfic and we had a laugh at the strangest ones she'd found.
I feel like there's been no real replacement, with the same kind of humour, lovable characters, lots of mysteries for fans to debate online, and the general colourfulness of the fan world of cosplay, fanfic, and mythical creatures. And I'm not even a huge HP fan, its only now I realise I miss it being around me...I miss the fan world being around me though I was never really part of it if that makes sense.
I've heard people say that the Artemis Fowl and Skulduggery Pleasant books are similar to Potter, I haven't read them yet, but noone's making films of those, it's all grim things like Hunger Games and Maze Runner. I want something with that same mix of funny, colourful characters and mysteries around them, taking the world by storm and inspiring that same mix of fandom and debate.