Chad Eiken has overseen Vancouvercenter for most of his career with the city of Vancouver. It’s been about a decade since the last of three buildings of the proposed four-building project was completed. And Eiken, a former planner and now the city’s director of community and economic development, could be forgiven for having his doubts as to whether that fourth building would ever get built. Eiken, in an interview this week, said he now has no doubt that it will happen.