After reading numerous blogs about the 'resurrection' of Anakin Skywalker at the end of ROTJ, I can't help but see a certain naivety in the romantcism of what is being proposed.

Just consider this..
Luke sees Emperor Palpatine as the Villain and Vader as a misguided victim of his dark master.. O.K..!?!

Now, With Vader knowing this, Isn't it possible that he could have thought that by killing Palpatine and therefore 'rescuing' Luke and the Universe from the Emperors tyranny, that he could persuade Luke to join him in ruling the galaxy as father and son so ultimately get the apprentice he longed for?

Because personally i don't believe that Vader expected to be on the receiving end of the surprised Emperors mis-guided Force Lightning.
So how was Vader to know that he was sacrificing himself?