Isn't it in fact called the 2012 or 2013 Missal? due out in Spring 2013, I seem to recall reading someone in the not too distant past.
If you've read that it was due to come out in the spring of 2013, then I suppose it will be introduced at Easter time.
But everything that I've read so far seems to indicate that it will most definitively
not be called the 2012 or 2013 missal and that it will continue to be called the 1962 missal, though it will probably be called the
new 1962 missal or something like that. It seems that they want to carry on the fiction that it is the 1962 missal in order to allow people to believe that "nothing has changed".
In any event, I guess we will see when we will see. All I know for sure, at present, is that no new missal was introduced on the first Sunday of Advent in 2012.