Such a late trip report but I flew TPE-ORD on BR056 back in May; in J there was no indication that it's a HK jet other than the slippers. I approached a FA about getting some extra swag, and was provided two packs of playing cards, two small bags of snacks, and some paper coasters. Will be flying this route in reverse in two months and will report back if the HK merch/presence is improved.