oh , yes I forgot to say where I am basing my thoughts about the exam. January 2019 IAL exam was all about free trade and development, and for Unit 3 essays on Monday they did not use any of the material from the essay's of January 2019 exam . So I m thinking that since it is a new specification , they might do the same for Unit 4, and then start recycling the material from next year onwards. Just my thoughts though, do not count on it!