Samsung confirmed rumors that they will unveil the new Galaxy S4 on March 14.
This means that Samsung is not using the MWC 2013 to unveil their next big thing. This is a big blow to the show. Apple has overtaken the Samsung Galaxy S3 in terms of global sales in Q4 2012 with not only the iPhone 5 but also the iPhone 4S. A new Galaxy S IV is essential now to get Samsung back on top. This will also mean that Apple will be behind again and has to follow-up with new iPhone(s).
Samsung is launching the Galaxy S4 in an event in New York. Samsung will go head to head with Apple on their home market out of the gate with the Galaxy S4.