VIENNA - Austrian President Heinz Fischer will probably visit Iran this year and may take a business delegation along should Tehran clinch a definitive deal with world powers over its nuclear policy, he told a newspaper. Fischer, who has a largely ceremonial role, accepted in principle a year ago an invitation to visit Iran in what would be the first trip for years by a Western head of state. Business leaders see the thaw with Iran as a potentially big opportunity to improve commercial ties once crippling economic sanctions over Iran's contested nuclear program ease. A tentative deal between Iran and six world powers was reached in Switzerland on April 2, aimed at clearing the way for a final settlement on June 30. 'Now that a framework agreement with Iran exists, a trip in the second half of 2015 has become likely,' Fischer told the Wiener Zeitung in an interview published on Thursday.