Hey, man. I messaged you on the other forums a few days ago, but you might not have PM notifications turned on there, so I'm contacting you here as well so as to avoid resorting to double-posting on either thread.
In short, I went through a 7-day Fall, and things basically went how I originally expected them to, with the exception that the leaves on the fruit trees didn't disappear at all until the first of Winter at 5am. I would have needed to change kFallLeavesStartTime to around .80 or a lower number to make the leaves even start to disappear on a 7-day Fall. And since the leaves remained in tact, the trees didn't go dormant even once.
Upon the beginning of Winter, the leaves disappeared all at once and the trees went dormant. I skipped ahead to Spring and the fruit trees were fully revived at 5am, though regular garden plants like Life Fruit remained dormant until the next day.