For those who may not have even around as long as others, the new waterfront fence extension is for the demolition of the rest of the waterfront. Stairs, ramps, cement ground, chairs, trees, and the rest will all be leveled. In the new fenced in area (extension) will be Duff Gardens, Jedediah Springfield, Lard Lads Donuts, a very cool chief Wiggum effect, a food truck, tons of little props, loads of new seating, and new trees and bushes.
The section of waterfront that's been under demo for months on the waterfront is for the Spinner, it's queue, and other small aspects of the Krustyland sub section.