Moore was probably planning this lawsuit for a long time. That's why he never played in the NHL again, because he knew that if he did that, then he couldn't have a lawsuit like this against Bert. This lawsuit is all based on him not playing. So I believe, essentially, the guy ended his career because he thought he was going to milk tons of money on this "cash cow".
There is no way to gauge how much the guy was gonna make either, because he never really played long. The guy is just money hungry. Bert never intended to break Moore's neck, that was an accident (the neck breaking part). You can really tell Bert regrets doing this too.