Core hasn't seemed to have asked about occupation yet, would be nice if that was our 10-15 marker. Then also role of prominent individuals, impact upon minority groups hasn't been asked for a while (2021 and 2020 respectively). And also intentions and authority of the LoN (2021). But yeah I agree with others, best to just be prepared with a fundamental understanding for every point.
For Conflict, the ones that haven't been asked in the longest time are the initial expansion (hasn't been specifically assessed other than a kinda half-mention in 2019 since the syllabus change), strategies (last asked 2020), civilians in terms of occupation, resistance, slave labour (touched on in 2019), and occupation (last asked 2020). So I guess make sure you have essays for these ones, like surely given there's two essay questions, at least one of them, if not two, will be asked.