Dear Helena,
Thank you for the "brain storming" type of posting. It caught my eye on this topic.
It is very true indeed. I was assuming that Tulku Dragpa Gyeltsen will not incarnate because H.H has became a Dharma Protector.
This post, just as what Helena have said about the emanation,
If H.H Tulku Dragpa Gyeltsen "purposely Die" in a tragic way just to be a Dharma Protector, it is impossible H.H will not emanate or reincarnate. And, it is also impossible that the Tibetan Monastery will not try to trace H.H Tulku Dragpa Gyeltsen incarnation.
The other thought that stirred up my curiosity is, was there any stupa for H.H Tulku Dragpa Gyeltsen? And, what has happened to the Stupa? If in the stupa has have ashes, where are the ashes now?
If there is an oracle of H.H, don't you think the oracle will definitely pointed out where is H.H now?