With current technology, there is no way for a robot team to achieve what astronauts can achieve. With future technology, we don't know the future, autonomy is likely to improve, but so do space travel.

Even the most advanced experimental robots we have today are closer in intelligence to a pile of rocks than they are to humans. They can do stuff in a controlled environment, and if given precise instructions, but space is anything but a controlled environment, and instructions take minutes to arrive, making real time control impossible unless the robot is painfully slow.

There is a reason why it takes years for Mars rovers to do the job Apollo astronauts did in days. It is also why thousands of experiments have been conducted on the ISS, which is probably more than all unmanned satellite-based experiments combined.

People are adaptable. They can deal with the unexpected, make repairs, etc... A little green man could wave at the robot and it wouldn't even notice because it wasn't programmed to expect little green men. Extreme amounts of efforts go into making sure our space robots deploy properly, simply because there is no one there to get things unstuck should it happen.