Complex sentence: The Americana project stirred debate in Glendale for four years; with some merchants fearing the Grove-style "lifestyle center" would hurt businesses for stores along Brand Boulevard and in the Glendale Galleria.
Split into simpler sentences: The Americana project stirred debate in Glendale for four years. Some merchants feared the Grove-style "lifestyle center" would diminish business at the stores along Brand Boulevard and in the Glendale Galleria.