Looks like today was not the day so here is the last possibility that I can think of.
His election gave him the name Benedict. His inauguration made him a head of state. But there are 3 qualities that must be met to be a king.
Receive Name: Received the name of Benedict on 19 Apr 05
Received Title: Title of Supreme Pontiff/Head of state at Inauguration on 24 Apr 05
Property: Moved into Apostolic Palace on 30 Apr 05 Making him a king

Pope Moves into Papal Apartment
REUTERS 30 APRIL 2005
VATICAN CITY (Reuters) - Pope Benedict was on Saturday moving into the papal apartment where John Paul died and was expected to deliver the weekly blessing from there for the first time on Sunday, Vatican sources said.
The bedroom and bathroom have both been repainted and special medical facilities installed for the ailing John Paul have been removed from one of the rooms in the suite.
Benedict also has access to another papal apartment in the Vatican's St. John's Tower which is used by popes when maintenance work is being done in the Apostolic Palace.
The papal apartments were sealed for a number of days after the death of John Paul on April 2, in keeping with Vatican tradition.
The apartments are familiar to the world because it is from one of their windows that the pope delivers his Sunday noon blessing to crowds in St Peter's Square
We know the seal of God is in the 4^th^ commandment and he is king of kings and lord of lords. He makes this clear by including his (name, title, property) in the 4^th^ commandment.
Name: The Lord
Title: Creator because he Made
Property: the heavens and the Earth and all that is in it.
Perhaps all these qualities must be met before God would consider Benedict a Head and King over the woman that sits on seven hills.
So we are looking at one possible day left for Benedict to fulfill a short space if it does equal 1260 days as determined by the scriptures found to conclude this theory.
30 April 2005 + 1260 = 12 Oct 2008
If it does not happen on this date we will have to look at other scriptures for determining a short time/space. Or just wait till it happens in God's time to see what follows.