Apart from some tree pruning/eed weeting prior to the Dirt Merchants race, there has been no recent work on the BE tread that I know of. I was up there a week ago and everything is just plain old weathering and wear and tear. Especially south of the grassy knoll.
Edit - Actually, I was up there on Tuesday night after 9 and rode from the pillbox south. No, not seen any new work. Someone was up there with a tripod taking night pix of the stars (presumably) probably wrecked that with my lights on full...