I take it some of this has maybe already begun? XD
Not that I specifically know of — just a guess!
But really, you're right that it can be both. There can be a Fantastic Beasts fandom happening on the newer platforms and we can also use the new canon here in established HP fandom. It's a little startling to think about how much fandom as a whole has changed since DH came out in 2007. That was before Tumblr was used as a fannish platform, and well before AO3 existed.
no subject
Not that I specifically know of — just a guess!
But really, you're right that it can be both. There can be a Fantastic Beasts fandom happening on the newer platforms and we can also use the new canon here in established HP fandom. It's a little startling to think about how much fandom as a whole has changed since DH came out in 2007. That was before Tumblr was used as a fannish platform, and well before AO3 existed.