If Boudicca won, would Rome return?

How would history change if Boudicca had won?

Rome would probably return with a much larger force, so the victory would begin a wider counterfactual rather than settle it.

A victory by Boudicca would begin the problem rather than bring Roman rule to a clean end. The decisive variable is whether Rome accepts the loss or mounts another campaign. Roman practice suggests another attempt. That return would require a substantially larger force, making the scenario suitable for a fuller counterfactual study.