Yea, I know with all the hype regarding the upcoming release of Star Wars BD version with hours of deleted scenes, that line seems like Darth Vader calling out to Luke to join him...but no...
That is just a prelude to the Takara e-hobby version of TF United Darkside Optimus Prime and Megatron...in short, yet another repaint.
Lately, Hasbro and Takara have been on a repainting spree 'coz why bother with new characters when you can milk those already successful ones...duhh...