I was just thinking of a great way to add Darth Vader into this chase assortment until I saw the April-Fool'-Day-possibility gig. I DO hope that Hasbro keeps intends to do this, though, well, because the line is gonna need a chase assortment anyway!
IF this assortment isn't a joke, I think it would be cool to re-release the Vader included in the ESB wave (w/ 3-piece helmet), but with a vinyl cape instead, in place of the normal fabric. It would be a very cool release. And I'm not praising in any way the choices that are already expected to appear (I really don't care if the Bespin Pilot is repainted).