anyone above you being vertically separated is not landing on the same runway.
In my experience traffic descending in the BUBIN or DESDI holds are invariably going to land on the same runway.
This topic has been covered before in other threads but perhaps a definitive answer from ATC would put it to rest. At a forum between Dubai ATC and a body of EK trainers last year the ATC boys asked for 1000'/min minimum rate of descent to free up airspace above. As a result of the STAR and other airspace constraints traffic inbound to DXB are normally well below profile, to mitigate this the crews reduce the rate of descent when they can. Perhaps if the controller wants a particular rate to achieve separation he or she should make it a requirement when giving the descent clearance.