I think in season 7 we will see Keith's galra side will come out more.

What I mean is that a gene will awake in Keith that will make him show his galra characteristics. This is like when certain species of animals such as a zebra shark, when they are young they have stripes hence the name and as they get older they turn into spots, or like with Dalmatian and other animals that changes as they get older.

That means Keith could go through this as he gets a little more older maybe or when he could be fighting. This can be seen in other some anime's and cartoons when the character is half and half.
So in other words Keith could go through a morph where during a fight he will look more like a galra and human morph and go back looking human or go galra and not turn back, or he could wake up and look like it.

We can see his galra genes show when his skin turned purple that time when his hand got injured and covered in the stuff (I can't spell it to save my life)back in season 1 or 2, (If I remember correctly, I think it's one).
It also happened in season 6 when he was fighting shiro his eyes went thin like a cats and his eye balls went yellow during certain parts. (Mainly when he got more mad or into) for example:

(( also maybe only shiro is the only one that can make him snap out of it, I don't know random thought))
So for all we know in season seven he could go through a morph where his eyes or skin could change and could become permanent.

Or

From seeing how his galra form has been coming out, it could only be when he's fighting. So his galra side is coming out to maybe give him some extra strengths or be a defence mechanism that works involuntary. Such as in Naruto with Gaara where he doesn't have to think and the sand comes out to stop him from getting injured. But we may never know as we only see this in two episodes in the series so far.

So maybe we might see it come out fully or a little bit, but what do you guys think?.

Here enjoying some clips of it happening and stuff. ((Bad language in the first one but it shows Keith's eyes a little more better))

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((^^go to 2:03 for his eyes to change))

So yeah tell me what you guys think.

Also here's season 7 trailer

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