I wouldn't go that far. I imagine he learned his lesson here and will never make this mistake again.
I don't expect Nintendo or anyone else in the game industry to let it go anytime soon, though, but I'm sure he'll find a job somewhere and be perfectly happy not to breach their NDA.
Yeah I meant it in the sense of a company reviewing an employee because he broke a NDA isn't going to say "oh it was just a dumb mistake, let's not fire him". He obviously learned his lesson.