Ann: Philippines Mindanao Island Security Status, page-16

You can expect more because now that Duterte has put Martial Law in place then he will be determined to finish the job before lifting it. And that means finding the leaders of these militant groups and exercising Duterte justice. I'm not expecting Martial Law to be lifted anytime soon - fully expecting at least 60 days. And the justice he exerts in Marawi city will be replicated in other Mindanao cities. Hopefully the whole island will be a safer place for all by the time he finishes.