Pope publically states why he chose the name "Benedict" in his first audience

Quote from the AP story Pope Greets First Audience in Somber Tones: "The pope touched on the issues he intends to tackle as he described how he chose his name, recalling Pope Benedict XV, who led the church during World War I.
'In his footsteps I place my ministry in the service of reconciliation and harmony between peoples,' he said."

This means we really don't yet know how this Pope will fulfill the prophecy.