Speaking as a historian here...

They probably won't speak about us at all, at least not in much detail. For one thing, the lives of all but the most exceptional people are historically ephemeral. They'll talk about the economy and technological change, of course, and the great fear that gripped the West during the half-century-long, escalating conflict with the Islamic world that began with the 911 attacks. They'll talk about changes of worldview and the reevaluation of some basic tenets of democracy... But they won't talk about us.

A century is not a long time in history. The basic patterns of people's lives don't change that quickly. We could all probably adjust and live relatively comfortably, much as we do now, were we to find ourselves in 1902. Besides, that's not what historians talk about.