But what about fandom sites like Wikia? There's mass copyright infringement going on quite openly there, but it's survived under the understanding that e.g. Memory Alpha discussing various topics from Star Trek wasn't causing Paramount any financial harm.
But if the hosters of fan wikis like that will need to become paranoid about that liability they might not host them at all.
But maybe there'll be some meta-foundation like a fanbase version of Wikimedia that'll bring these all under their umbrella, or more likely sites like Wikia will just be hosted commercially by fans in the US blocking EU IPs and fans will need to use proxies or VPNs to browse them.