This Yin Chakra literally translates as "dark chakra", and is what Minato's Kurama is made of.
It's interesting that Yin Chakra is essentially what Genjutsu is made of, so Minato could potentially create some extremely powerful Genjutsu using it, but since he died when he had it sealed inside him it's unlikely he's developed any techniques using it.
Yang Chakra literally translates as "light chakra", and apparently has life-giving properties. As you said, that's why Naruto has insane regeneration, and also why trees grow out of plant matter around him. Interestingly enough, Naruto could probably use his Yang Chakra to create powerful healing techniques and for super Taijutsu, but that's Sakura's thing so it won't happen.
I think the fact that neither of them are using their halves to their full potential is definitely a sign that Naruto will be getting both sides. I mean, it's inevitable anyway, but it would make a lot more sense than Naruto only having the Yang half and not using it properly.
