This doesn't exist anymore--Rule 4.0 doesn't have "Rules" in the classic sense of the term, so there is no "overall" truth to display. The closest Rule 2.5/3.0 analogy to the only thing you can create in Rule 4.0 is the "Trigger" type of "rule" from these older versions (I use this lowercase term in quotes loosely), which also don't display these for the same reason. What drives the running of rule actions in Rule 4.0--as it did with a classic Trigger--is one of the trigger events firing; as you know, what drove it in "classic" rules before was truth change on any of the conditions, which caused a re-evaluation of the rule. Conditions in that sense don't exist in 4.0, either.
If there's a specific goal you're trying to achieve by seeing this status, perhaps someone can come up with a workaround--I see someone mentioned one above already that may work, depending on what you're really trying to do.