SAN FRANCISCO BUSINESS TIMES | “The last two years have been about re-imagining places for our emerging economy and what kind of environment helps facilitate that,” said Alexa Arena, vice president of Forest City. Exactly how those ideas will translate on a larger scale into bricks and mortar — actual office towers, public plazas, apartment buildings, galleries — is something that will be hammered out over a two- to three-year public planning process that will start now, she says.