So Mark Ellis, Flashpoint's co-creator and co-executive producer posted a picture of the Flashpoint writers in the writer's room. Now, on the wall behind the writers, there are notes about each of the season 4 episodes. Unfortunately, and this was probably intentional, most of them are too far away to be able to read. Of course I've tried zooming in, but the notes just get so blurry that they become even less legible. I wish I knew how to work with pictures to clear this up (if it's even possible), but alas, I don't.
Anyway, I guess you could call it a spoiler pic since there are two notes that you can vaguely make out, but it isn't really because even with those two notes you have to squint really hard to be able to read them and even then the notes are so vague that they don't actually really tell you much.
( The pic )