The only thing that we know for certain about the future is that things will change, and that is especially true in our industry. If your APIs are successful they will be used in ways you never had foreseen and the data you deliver will be combined with other data in very surprising ways.
photo by Bruce Denis
At the same time technology will change and what your organisation can and want to deliver to its customers will change. In order to keep relevant and to keep serving these ever evolving needs and requirements your APIs need to change and you need to know how to handle these changes.