The interconnectedness of Pages to one another could potentially be visualized as a graph. Possibly a directed graph so an edge could communicate the direction of the link, but also if the link is bidirectional (i.e. pages both link to one another)
Perhaps this will be integrated somehow into the backlinks viewing UI flows.
An option could allow for traffic visualization; thickness or opacity of the edges could indicate the number of visitors who've taken that path from Page A to Page B. This could tie into the analytics part of WeWrite.
Here's a dynamic graph view showing the growth of a GitHub repository over time using a software called Gource. This could be used to show version history.
