The Himalayas is the world’s highest mountain range immediately at the north of the Indian subcontinent. The Himalayas were formed by the Eurasian and the Indian subcontinent plate colliding against each other  about seventy million years ago.  After a few million years what will it be? A feature we know is that since plate tectonics move, so will the Himalayas. It is approximate it will move 1,500 km into Asia in ten million years. Another thing we know is the mountain range will shrink in size because of weathering and erosion. I predict in a few million years the mountain range will become a plateau.