New York LaGuardia’s biggest problem is congestion. They could use more takeoff and landing space for sure but primarily it’s New York airspace that’s the issue. Without fixing air traffic control, there’s little that can be done to the physical plant that will truly solve problems.
LaGuardia has been slated to get a new Central Terminal in 2021 and I never believed the timeline.
Now, instead, Vice President Biden and New York Governor Andrew Cuomo today announced a whole new plan for the airport instead.