It is not an actual trimaran design, they are attaching side-hulls to the base-monohull design ,creating additional buoyancy and deck space for additional weapons.The hull type would be trimaran. Difficult to sink
As seen in the video:
She has got foldable mast, for easy storage in RHIB bays, airlifts.
Dynamic positioning is a good capability to see in such small vessels, it can stay nearly-stationary in streams. Aselsan is finally deploying DIKONS.
20 sonobuoys in ASW variant.
As not seen:
Towed sonar, intercept sonar, dipping sonar similar to the one adopted by Ares.