Arc 9 effects in Arc 10? [spoiler discussion]

So I'm having a great time finally almost catching up to the web novel and just went through Arc 9 which was FANTASTIC and I'm incredibly looking forward to watching in 2035. I just wanted to ask if anybody has found any effects or foreshadowing within Arc 9 of Filore?

Roy's death seems like the most notable example which somehow Al's disappearance caused. It seems as if Subaru visited Roy at a relatively similar time to Al did, so would that mean the witch cult saw a change in thing, perhaps from the book, and acted accordingly?

I suppose it's also possible that news of the dragon would've simply stopped Filore from making her entrance?