Developers proposing a 115-unit mixed-use complex known as Cushing Village said they expect a final hearing and potential vote regarding the long-debated project during the Planning Board’s 7 p.m. meeting Tuesday in Town Hall. Planning officials unanimously accepted the project’s scope, square footage, and height in an informal May vote after developers cut 30 percent from the original proposal’s 225,000 square feet. Representatives of Smith Legacy Partners said in an e-mail last week that if the project is approved, construction would begin this fall, and would provide the town with $600,000 in annual revenue and a one-time payment of $1.3 million, as well as expand the community’s retail options. However, some residents have expressed concern that the project’s size would worsen traffic, block sunlight, and undermine the character of Cushing Square. For more information on the Cushing Village project, visit the Planning Board’s page on the town website, www.belmont-ma.gov.