MTV caught up with Shailene Woodley, and in a short interview she revealed what the box means:
There’s a box that is in Jeanine’s possession, and Jeanine wants to open the box,” she said. “But the only way in which it can be accessed is if one Divergent goes through a series of five simulations. Not any Divergent can do it, you have to be a special Divergent and you have to be able to outsmart all five factions or the systems which the factions have placed. Tris happens to be the only one who can do that.
That’s actually pretty interesting, watch the whole interview:
22 more days to go!