okay so this is how i think theyll handle K/S canonically:

i think there will be some kind of explicit/obvious-yet-unspoken indication they have feels for each other building up over time but at the exact moment that they could actually maybe go there, Pike will have his accident and Kirk will become Captain of the Enterprise and it will inhibit the relationship from actually happening (fraternization etc).

so it'll always remain nebulous but be clear nonetheless that there was smth more there and give context to TOS & the films