ISIS is being pushed out of the Middle East and is moving into Europe and other places

Still, Greenberg said that penetrating the cells will likely be extremely difficult because of the circle of trust the group operates in. She noted that the network is "community based," relying on siblings, wives, cousins, and lifelong friends to plan attacks. Expect more attacks, she noted. "With Isis being slowly pushed out of the Middle East and finding Europe a place to wreak havoc, the time is now for the EU to coordinate a strategy."

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Belgium, Europe Struggle to Balance Rights, Need to Fight Terror

So, as ISIS is destroyed as an army in Syria and Iraq and ISIS soldiers return home to Europe and other places around the world likely there will be more terrorist bombings and such as the ground war with ISIS in Syria and Iraq ends.