No one can really predict that paper. So far JWT guess is working like more than 50%. I have seen guess for Pak affair but I do not think so that apart from 1 or 2 questions anything is going to come from that portion.

In last years, history was ignored but I am expecting 2 questions from it at least. Aligarh movement and mujadid alif sani are most important in history. Sir syed and aligarh was also in pms paper this year.

Check pms paper of this year and prepare related questions from that.

Examiner mostly asks from current affairs so, following are some important questions

- political and democratic evolution since 1971
-Corruption
-fata reforms
- water scarcity as well as water politics
- poverty
- cpec
-south Asian policy and effect on Pak
- non traditional security threats
-sco

Prepare them first. After that just go through other topics. History portion is lengthy In css books. I am doing it from bachelors book which is more than sufficient and to the point. Even some other topics like issues, organizations etc are well written in that book.
It is saving my time.