Rotate plane by normal, how to calculate new position?

This function should just do the trick:

  Vector3 changeNormal(Vector3 normal0, Vector3 normal2, Vector3 pointA, Vector3 pointB) {
     Quaternion rotation = Quaternion.FromToRotation(normal0, normal2); //Get rotation between both normals
     Vector3 rotationDir = pointB - pointA; // Get point direction relative to pivot
     rotationDir = rotation * rotationDir; // Rotate it
     pointB = rotationDir + pointA; // Calculate rotated point
     return pointB;
 }