Having Vader use Force lightning, something Lucas specifically said he can't do, would be going too far. So hopefully Disney knows not to screw around with the main characters. I'm thinking it might be related to what Vader did blocking Han's blaster bolts in ESB. They could have done that and made a toy function out of it because it looks like it shoots or something.
As for the lightsaber, I really hope this was either just for that photo, or Hasbro just messed up. With all the reference material they have access to directly from Lucasfilm, not to mention Google, there's no excuse in 2016 to mess that up! I'm not buying it so I don't really care. Just sayin'. :lol