World Baseball Classic Inc. announced the venues for the 2012 WBC. From the press release:
San Francisco will make its debut as a host city for the World Baseball Classic, succeeding San Diego’s PETCO Park (2006) and Dodger Stadium in Los Angeles (2009) as the host of the Semi-Finals and Final. AT&T Park, which is currently in its 13th season as the home of the Giants, has hosted Major League Baseball’s 2007 All-Star Game and the World Series in 2002 and 2010.
Miami will be a second round host venue for the second straight World Baseball Classic, having also done so in 2009 at Dolphin Stadium. Marlins Park is a state-of-the-art retractable roof ballpark in the heart of Miami, renewing the legacy of the Orange Bowl in Little Havana.
The homes of the D-backs, Chase Field and Salt River Fields, will serve as host venues for the first round. This is the second time that World Baseball Classic contests will be played at Chase Field, which hosted in 2006, when Scottsdale Stadium also welcomed first round games. Chase Field hosted the 2001 World Series and the 2011 Midsummer Classic.
... International venues that will host 2013 World Baseball Classic games, pool composition and game dates will be announced in the weeks ahead along with information regarding ticket availability.