And I have GREAT news! It looks like a sequel is actually in the works.
First up, a disclaimer: when asked for comment, a representative for Netflix said, "we are unable to confirm this".
BUT I'm still excited. Here's the sitch: To All The Boys I've Loved Before wasn't actually produced by Netflix – they bought the distribution rights from the production company Awesomeness.
According to The Hollywood Reporter, Viacom acquired Awesomeness in August, and now Paramount (also owned by Viacom) has struck up a multi-picture deal with Netflix.
The Hollywood Reporter revealed that a To All The Boys I've Loved Before sequel is "one of the first movies being discussed" in the Paramount/Netflix deal, and will still be produced under the Awesomeness banner.
Here's hoping we get official confirmation from Netflix sooooon.