Chen even predicts, based on the Chinmentung Cliffs 'rate of collapse and evolving trends, that the area of collapse will continue to expand. Within 15 to 20 years, headward erosion effects may reach the main peak of Yushan and the eastern slope of the north peak, causing a major change in the topology and appearance of the area from Yushan to the Patungkuan area.
陳隆陞還依照金門峒斷崖的崩塌速率和演化趨勢預估，金門峒斷崖的崩塌規模將不斷擴張，不出十五到二十年，向源侵蝕作用可能抵達玉山主峰與北峰的東側坡，使得玉山到八通關地區的地形地貌大幅改變。