As someone with only my vague instincts as a native speaker to go off of, I would expect the breakdown comes to something like:
- "You will find that he is not too receptive to this sort of thing", "You will need to figure out another way in", "You will want to be careful about anything getting wet"
- "You will achieve great things", "You will die alone"
- "You will graduate in two years"
- "You will get me that cloak, now", "You will walk out of here and pretend this never happened, or else"
- "You will take him?", "You will do what tomorrow?"
An added layer of complexity is that each of these contexts differ in the degree to which contraction and/or substituting "going to" is natural-sounding, but none are 100% one or the other, and it's difficult for me to make out an overall pattern. I am zeroing in on "you will" because a few of its contexts seem exclusive, while I/we and he/she/they/it phrase certain equivalents differently, and also have exclusives of their own. I'd really like to know what the official system for looking at this is.