So far the manga skipped most of the stories that had Mikoto on Index series.
Vol.5 was important for her fans lol. SKIPPED.
Vol.6 shows her stalkerish behaviour. SKIPPED.
Vol.8 Bye-bye Kuroko. SKIPPED
Vol.9/10. The first day has been skipped therefore no bet, thus no punishment game. AKA buy the novels
SKIPPED.
What does that means? No Vol.12-13 likely candidate to be SKIPPED.
Soooooo. What is left? Vol.11 but I think the time after Vol.13 is going to get the focus, and if there is a war for those who are not involved with the dark side like Mikoto.
We're going to get a big jump in the series chronology.