Although I'm open to seeing MN set in the 1950s and the other Chronicles subsequently set in more modern times — meaning I'm willing to watch this and see what they make of it — it's going to have to be done extremely well for me to actually like it.

And along with the still-dangling question of Aslan — although the maned Lion on that poster definitely gives me a lot of hope — there's also the question of what will be done with the rest of the series. Greta Gerwig has been commissioned to make two Narnia movies, we've been told. Presumably MN set in 1955 will be followed by LWW set in perhaps the 1980s or '90s. That too needs to be done in a way that makes sense and doesn't look ridiculous, if it's going to be a box office success. But then there are still the remaining five books, and if Gerwig doesn't do a good (read: sufficiently money-making) job on the first two, they probably won't invite her to do more. Or else she herself might choose to stand down after two movies so she can focus on other projects.

Regardless, if a new director needs to take  over the series after "Narnia 2"... what if they can't find one who agrees with Gerwig's radical and (many would say) totally unnecessary decision to change the time period of the stories?? This is one of the things I find most uncomfortable about that decision. Like the possibility of Aslan being female, it's something that will affect the entire series, not just one particular instalment. And if it turns out to be a decision that's not popular with viewers, that could sink the entire franchise. That's why I don't understand why they're making such controversial moves with the very first film.