I'm curious to see where it will go, too. So far it's helping explain the longevity of some couples/friendships who aren't the greatest ITR in socionics.
My parents are superego in socionics which is supposedly really bad, but I'm pretty sure they're duals in psychosophy which was a revelation. It's funny because I can see both at work. They don't really understand one another in terms of quadra values--and I wouldn't say they're psychologically intimate--but for superego relations they can live and work together closely surprisingly well. It's interesting to see them "soothe" or unquestioningly defer to the other in certain attitudes.