Arms aside, ISR will be the punch of such a drone. High altitude, long endurance, robust sensors (AF-500, intelligence pod and so on).
For the arms, the ship itself has alternative platforms to deliver them (Cobra - Cirit / UMTAS, Çakır).
For LOS they will need to integrate additional antennas to the ship, additional consoles in the operations room or configuring an adjacent room as 'drone operations room' those two rooms will need an opening between.
Integration to the ADVENT so that data exchange or mission ploting becomes reasonable, or else TB3 will be there just for the appearance.
SATCOM bandwidth is another limit, they may need to make it possible to alternate between UAVs and stall some of them in cruise mode etc.
IMO the ship has sufficient SATCOM bandwidth but not all can be allocated for drones.