New students at Southern Illinois University won’t be paying more for tuition this fall.  WSIU Radio reports the university system’s trustees on Thursday opted against raising the tuition by 3 percent for newcomers to the Carbondale campus and 5 percent for those in Edwardsville.  The board’s chairman, Randal Thomas, says there was no traction for boosting tuition costs, especially as the university system takes on a new president at the first of next month.  Trustees will consider proposals for fee increases at their meeting in May.