Then why state it again? People are welcome to post how they think the transformation should be, weather it turns out that way or not.
But in the end, teen Gohan will have ssj and ssj2, and adult Gohan will have ssj, ssj2, and mystic. Because you cant give a trans to someone that they never achieved.
Krillin's mystic trans is in no relation to Gohans mystic trans in the series. It was just a name given to Krillin's transformation.