The correct answer to this open question is the following.
The most significant changes and continuities in Western and Central Asia from 1400 to 1700 were the following.
In the 1400s, the Timurid Empire had control over this region. Timur was the leader of the Empire. The members of this dynasty ordered the rebuilding of the Citadel, the Bazaar, and new buildings are constructed. They establish a new capital, Herat; that became an important center for the Muslims.
The wife of Emperor Shah Rukh ordered the construction of mosques to teach women about the importance of Islam.
The arrival of Husain Baqara as the new emperor in 1470 meant important support to the art and culture of West and Central Asia. Painters, poets, and calligraphers received support to do their jobs.
Dayan Khan became emperor in 1491, but he fell short of expectations and his period represents the decline of the Timurid Empire. In 1507, Babur, from the same family founds the Mughal Empire in India.
In 1543, Altan Khan coverts into Buddhism and became a Lama in Tibet.