The Risk Assessment Matrix should help you consider all the possible risks to your business and to evaluate each one based on its probability. Just because a certain risk isn’t likely isn’t a reason to ignore it in your plan, but it should be prioritized after the more likely scenarios are covered.
By then, you may find that the same activities that will get you back in business in a likely scenario will be equally applicable in a less likely scenario. It gives an overall threat ranking that includes not only how likely a given risk is, but also how prepared you feel you are to handle it. This will help you determine where else you might need to spend energy or resources to keep your business resilient.