For Curtism1234
The only potential problem with the hops though is aging, particularly the dry hops. I'm not sure what your plans are for the stout; you would have to drink them pretty quickly.
What if I did a 60-minute boil on the hops as I did in the recipe above, and then dry-hopped some additional cascade. The original hops should be enough for good preservation and then the dry hops would add flavor.
Yeah, the 60min hops are going to preserve it.
Just like an IPA though, your aroma / flavoring hops are going to fade away within 6 months. The fresher the beer the better.
Now if you drink all of that batch in 4-6 months, you'll probably achieve what you're looking for. Longer than that, you're going to slowly revert back to the original beer you've been making. Probably not in a bad way though.
It depends how long your batch lasts you. With it being a rather large stout (from the sound of it), I didn't know if you have plans for aging your beer. You can still do that if you want, but don't expect much from the late additions in 12+ months.