I don't see him as working with/for the WTS because there doesn't seem to be an upside for them. I do not believe that anyone as arrogant as the GB members would be okay with many of the videos he posted. Evans constantly made fun of and belittled the GB, and I can't imagine that they'd be okay with that. If Evans has a big ego, it must seem microscopic next to the ego of men who are treated as royalty by people who believe that they are God's "spirit-directed" mouthpiece.
As for the lawsuit, the fact that he lumped everyone together implies that they conspired to commit a specific crime, not that they each committed a separate crime. So he either knows that the suit was just for show, or he's too dumb to realize that his lawyer took the quick and easy path, which will lead to the case likely getting tossed. He might have a problem if he tries to follow up with a civil action. It would be hilarious for a defendant to insist that he be deposed, just so we end up with video of some lawyer utterly tearing his case apart and ripping his reputation into tiny pieces.