Here is the 12c equivalent -
Some name changes here, but note the new checkbox -
Exclude previous participant in current task.
There is also an additional User task property in 12c -
11g screen - check out the Advanced properties
12c equivalent -
Note: the new Reviewer property.
Human task Design Time
Data Definition Tab
Addition of Summary Atttibutes.
Here is a simple example of such -
Those are the deltas folks!