The British paramilitary groups might since they survived peacetime by staying on as advisors to British pitiful parties like the DUP.

The IRA from the troubles largely splintered and went away. There are still angry old men getting teenagers to throw thier lives away but not enough to be relevant and largely accepted the Good Friday Peace treaty.

The British government signed on behalf pf the loyalists who never wanted peace or irish civil rights so who knows what will happen.