The City of Falls Church’s historic opportunity to turn nine acres of blight in its central commercial district into a glistening, vibrant new main street with a hotel, a supermarket, retail, office and residential components, remains on track for a final approval by the City Council on Feb. 28. Assuming the Planning Commission provides its recommendation next Monday, as requested by the Council, the Council will hold a final public hearing on Feb. 24, and hold a special meeting on the 28th to cast its vote. It gave a unanimous preliminary approval to the plan last month, moving forward an epochal partnership between Atlantic Realty and the City government as the culmination of an almost decades-long effort to achieve a new city center.