Examine the trade-offs.
Expansion changes more than revenue. Consider the people, capacity, customer support and management attention required to deliver the promise, as well as the uncertainty around demand.
Use scenarios with care
Describe a small set of plausible conditions and the decisions they would change. Scenarios are tools for discussion, not forecasts or assurances. Seek qualified advice for legal, tax or financing decisions.
A useful starting point
Write a short note describing your situation, the question you are trying to answer and the evidence you have. Keep it specific enough that someone else can understand the decision without guessing.