So in Return of the Jedi, it's obvious that Palpatine wants Luke to kill Vader so Luke can become his new apprentice. It's also obvious that Vader wants to turn Luke to the dark side as well. But was Vader in on the whole getting killed by Luke thing?
On one hand, Vader was pretty devoted to the dark side, and I can't say I blame him given that he killed younglings and everything. Hard to go back after that. And he should be very much familiar with the Rule of Two, and understand that Luke's infinite potential would be much better for the growth of the Sith than Vader's crippled self.
But I just can't see Vader as the type of guy to go on a suicide mission, especially given that he offered to join up with Luke and overthrow the emperor just one movie ago. Was Vader really intending to die when he crossed blades with Luke in ROTJ?