On whom will the future of the Gelug Lineage depend? On HH Dalai Lama? Yet he is not the head of the Lineage.Furthermore, in recent times he has made strenuous efforts to break down walls and barriers between the Lineages, preferring to unite all schools under one, under him.
So who then are the torch-bearers of the Gelug tradition, who will ensure that Je Tsongkhapa's teachings live on - as the foundation of the Gelug Lineage is Je Tsongkhapa's teachings. Indeed, whoever is a torchbearer has a tremendously important task ,as Je Tsongkhapa's teachings - particularly his propounding of the Middle View of emptiness - are the sole and most powerful medicine for the ignorance, confusion and wrong views of this degenerate age. Didn't Dorje Shugden arise as the Protector of these teachings so that beings of this degenerate age can receive them?
By logical consequence then, the torch bearers, to ensure that Je Tsongkhapa's teachings thrive and are spread far and wide for the benefit of all, are the great Lamas who are doing this very job right now, and who are Shugden practitioners.
They are the great Lamas and incarnations of previous high Lamas- great Dorje Shugden practitioners - who are tirelessly spreading the teachings of Je Tsongkhapa ,as well as spreading the practice of Dorje Shugden. They are Lamas like Kyabje Trijang Choktrul Rinpoche, Gangchen Rinpoche, Gonsar Rinpoche and a host of other young Lamas.
So there is no question of the Gelug Lineage disappearing.