Yea, my favorite would be if this fixing Sam could only be done gradually somehow, like being around Dean longer helps him progressively gain back his humanity or something, and not just a simple SPECIAL TWO PARTER IN WHICH THEY SEARCH AND FIND SAM'S SOUL IN A GLASS BOTTLE thing. That would definitely be my ideal, and given what we've had in terms of mythology so far, I don't think it's impossible that they might give us something like that, even if it is that his whole soul is missing right now. I highly doubt we'll be getting a black and white Buffy/Angel idea of the soul, evil vs good thing. But I might be instilling too much confidence here, Idk.

At any rate, glad you could enjoy!