I'm wondering whether the choice of themes in Gray Matter has anything to do with the fact that GK4 was never made - after all, both had/have the theme of ghosts (GK4 famously had hints starting from GK3's Sidney search (and eventually JJ said it herself, right?) and in Gray Matter you can see from
David Styles' bio page that "there have already been rumours that mr. Styles migh be haunted by his late wife" (and I'm sure this has been common knowledge quite from the beginning)). Of course Gray Matter probably also focuses more on the subconcious and such while GK4 would've been more purely about the supernatural (I'm not saying GM won't be, but I'm sure you understand the difference I'm talking about). But still could there be any intentional connection, or was it just the convenient way to make the story, with the same ingredients?
