Think about new solutions. Everything that can be invented has been invented.
Options are the building blocks for future alternatives.
A wide range of options now means a wider, more comprehensive range of alternatives later. Identifying the widest range of options possible will help build credibility and public trust throughout the process. Not identifying an option may foreclose opportunities and invite surprises. With this broad base, you can show that you were sensitive to all the needs and tried to meet every identified objective. The name of the game right now is quantity, rather than quality.