User blog comment:CoolJazzman/Genshirō Okikiba could he be a traitor?/@comment-26420452-20131021175546

To an extent, it's a plausible theory. He does have the impression of the sneaky one. Yet, him surviving the explosion doesn't mean he didn't get injured (as you said, we haven't seen him). Furthermore, he doesn't seem to have had a position of great importance, so it's unlikely he could've been of any help to the Wandenreich. Most importantly, what would be his interest in being a collaborator?