It wouldn’t be surprising if the UK shifted more toward robots, at least. Its army has had trouble meeting recruitment targets, with just 73,870 trained soldiers when it expected 82,050. Robots could fill those holes or even expand the military while reducing the dependency on human soldiers.
Just what roles those robots would fill isn’t certain. There has been staunch opposition to autonomous “killer robots” that wouldn’t require human intervention. Drones, meanwhile, require operators to either directly control them or make judgment calls on attacks. They could require more humans in the long run. If there are any truly automated robotics in the British army, they may be limited to cargo trucks, scouts and other unarmed machines. That could still help by allowing humans to focus on combat, but visions of robot-versus-robot battles might not pan out any time soon.