Robot behaviour is not something we really have a lot of experience with.
I don't think it is too far off, there will be thinking robots.
It seems 'self-defeating', if that could not happen...All depends how far they can take the mind of the robot, to function on a human level.
It seems inevitable, at some time in the future
robots will be acquainted more with human thought process.
Could they become killers of humans on a big scale? The answer is we do not know the true advancement of any new technology, we are told only a portion of the capabilities.
We are not on a 'need to know basis'.
Never say never, you just don't know what they can do, behind closed doors.
I don't think they have a reason to. Robots do what they are programmed to do so unless it was a mistake (probably) made by the programmer or something that's not likely to happen. even with artificial intelligence.
Robots with AI are learning exponentially and at some point they will become self sufficent and realise we are a waste of time, space and energy and . . basically we're screwed. Hopefully it is a long way off . . . . . .