if you are only planning 2 sprints ahead, what if you need to build a feature which requires a lot of requirements gather, user research, even before materializ

if you are only planning 2 sprints ahead, what if you need to build a feature which requires a lot of requirements gather, user research, even before materializing into tangible stories that developers can execute? If you fail to look beyond that myopic vision, then when a tru need materializes, it may be too late to react.