no, it would be stupid for Bandai to kill off an element that they themselves both implemented, and Tylar has stated was one of the greatest things of this game. Void can be used for cards that are designed to be in any/every deck can just have a void symbol. Theres lots of speculation and talk that the Edo-Tensei'd ninjas may be void, as well as Samurai ninjas.
Plus, whoever said we won't get maybe more pain's, Nagato, or other void ninjas? I mean,