Yes, basically I extracted the current versions of all 4 sets we use. I then wrote a script to get the intersection of emoji that are present in each set that weren’t previously in discourse and there were 196.
I’m not sure if we were missing some from Unicode 6 or if all sets happened to include more emoji that is later than unicode 8. Each set had quite different numbers of emoji that weren’t in Discourse, so I’m not sure if they speculatively try out new emoji or what, but the good news is we have many more to use!