This year's course, from what I can make out, has no truly new fences. Just about every fence on the course is a repurposed fence from the last 5 years. With such a rich history I would have expected a few fences from the dim and distance past to re-emerge. You've only to search the web for some previous footage of Badminton through the ages to see a number of fences that we've not seen at Badminton for more than a decade - like a ski jump, unfinished bridge, or the famous chevrons.
I predict there will be no more than one fence that has had some serious external influence, the rest will be repetitions from the last few years, what a shame.