The last version on Github is "working" with Legion but it does not have any of the new factions added to it. Anyone is able to contribute fixes they may have also.
It looks like someone has taken Factionizer and is in the process of rewriting and updating everything under the name of RepHelper. Here's a link to it:
It looks like someone has taken Factionizer and is in the process of rewriting and updating everything under the name of RepHelper. Here's a link to it: