I, uh...I guess that's relevant here?
In this hypothetical scenario, how would it be playable at midnight without it being pre-downloaded beforehand?
OP, it'll be preloaded. Sony's store website doesn't say it (I actually don't think it explicitly says it for any game), but the description includes the wording of it being playable at midnight on release day, which is their standard wording for a preloadable game. It'll be good.