First off, thanks for working with him early and getting him interested. This way you can ease him into it, keep it interesting, and teach him proper ethics and methods.
Unfortunately, I didn't have the opportunity to do so with my two daughters for a number of reasons (which I won't bore you with here).
The elder did express some interest in deer hunting as a pre-teen, but it was just apparently a fleeting thought and passed quickly. She still has a taste for game meat of any kind, though. The younger ended up going vegan, but we each respect the others' ways.
Keep up the good work. Not only for the reasons I mentioned earlier, but also for the precious relationship between you that this will likely strengthen.