One website (dunno if I can mention name here :v) datamined some new icons and maps from upcoming build 13066, I was looking through it and found this
"spell_shaman_measuredinsight"
The icon looks like white sparklin whirl with dark black background.
What are your ideas what this could be?
EDIT: Hm hm hm after translating it to my language, it looks like another/redone version of Far Sight... :v