Rising unpredictability of violent extremist acts and challenge for law enforcement and security apparatus to counter.
From the Left less danger, presently more along the lines of reactive activists. They deliberately avoid fatalities in bombings, but this may change.
Hero status of jihadist foreign fighter returnees in Germany. Able to inspire new participants.
For the right, de-industrialisation, disinformation, and decreased living standards structure risks.
Patterns and prevalence of right, jihadist, left, and activists differ widely across countries.
Environmental activists may radicalise, splinter and engage in direct violence in future (property, infrastructure, AND people).
A convergence of ideologies and societal polarisation, leading to more difficult external and perhaps internal threat detection & prevention.