From Ady in a different thread on keeping the Vader secret:
If vader in the suit had been the one to storm the Jedi Temple then it would have gone along with what Obi-Wan told luke about Vader "hunting down and destroying the Jedi", but without spoiling the ESB revelation. In fact, that's exactly what i'm hoping to achieve in ROTS:Revisited. It's going to be very tough to acheive, but on the plus side this means that there will be a lot less of that whiny, emo, crap actor Hayden in the movie, which can only be a good thing
My head is spinning on how the rest of the movie plays out with that in mind...
(A crude attempt of mine at a ROTS Vader...):