In the future, robots will be perform all kinds of complex surgeries. The DLR MiroSurge is already capable of helping surgeons with minimally invasive procedures. It has 3 robotic arms with 7DOF, 2 haptic input devices, and a surgeon console with a 3D display.
This robotic system uses two arms to carry instruments and the third arm to handle the endoscope. The below video shows it in action: