What's the deal with Google I/O this year?

Have you noticed Google has never said when I/O will be this year? This is way behind the normal schedule. Previous announcement dates:

I/O 2013: Announced December 2012 

I/O 2012: Announced October 2011

I/O 2011: Announced May 2010 (at the previous I/O!)

It's 2014 and we've never heard a date for I/O 2014! What's the hold up Google?
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