A 'what if?' scenario for you...
Terminator: Are you Sarah Connor?
Sarah Connor: Err... yes...
Terminator: Die! (Shoots Sarah Connor)
Terminator: Oh, now what do I do?
This is something that occurred to me one time when I was watching 'Terminator', what would the Terminator have done next if he had succeeded in killing Sarah Connor? Once he had accomplished his mission there would have been nothing left for him to do (Skynet's future having been safeguarded), or would there? The way I see it, the Terminator had three options...
1) His mission fulfilled, the Terminator realises that he is still wanted for killing a whole load of police officers. Knowing that he will eventually be tracked down, he decides to self destruct so that his future technology won't fall into the wrong hands and influence the future development of Skynet.
2) The mission may be over but there's still a lot of damage that the Terminator can do before 'Judgement Day'. He becomes a 'one robot army' intent on destroying military installations that could prove dangerous to Skynet in the future.
3) All any soldier wants to do is re-join their unit and the Terminator is no different. The problem is that it's 1984 and 'Judgment Day' isn't for another thirteen years. What's a Terminator to do in the meantime? Get a job/apartment, settle down and wait for August 29th 1997. There are many job opportunities out there for a highly advanced hunter/killer robot but a career in the CIA beckons because of the Terminator's espionage capabilities. The Terminator's exploits eventually form the basis for the film ‘True Lies’.
Any other suggestions?