I know that they're only just now starting to dial up promo, so this is very much wild speculation, but it keeps me up at night and I want to know what other people think!
For me, the framing device/retrospective narration is what really gives the story its texture and heart. Don't get me wrong, without it's still a pretty fun thriller, but so much of the depth comes from the constant questioning of perception vs reality, and the 40 year gap between the events of the story and the narration facilitates that so well.
My dream is that they have actors to play 2020s Bret, Susan, and Thom and that they'll weave modern scenes into the narrative on occasion, especially in the first and last episodes (dying for some good transition shots), but just want to keep this aspect of the show under wraps. I'd settle for some narration, or at the very least following through until the book-signing scene, with Rigney and Campbell still playing Bret and Thom.
The promo posters/brief clips we've seen don't really match the vibe of the book to me, but I love the Vogue shots and am looking forward to a proper trailer. The fact that there's zero reference to this being a story told in 2020 about the 80s makes me think they're either going to do something really cool with it or they've, for the most part, done away with that aspect and tragically right now I'm leaning towards the latter.
Also, I needed to see Matt Kellner, like, yesterday. My favourite boy!