Oh, one other thing, Benioff and Weiss are not always very careful about the detailing so I suspect the “flashbacks” will be very different in “The Winds of Winter” (if GRRM ever finishes it) than they were on GoT.
If you read my follow-up piece, I address the other part of that question, yes — Bran can theoretically see “beyond the trees” but how that works is a bit sketchy at best.