It says all in the work group were issued because of unknown final results.
Because there are bumping rights associated with this reduction in force for your workgroup, Southwest is unable to determine which Employees ultimately will be affected by the planned action, nor the specific dates on which they will be affected. In an abundance of caution, we therefore are providing this notice to you and all other Employees in your workgroup who may be affected by the planned furlough due to the exercise of other Employees’ bumping right