5th Arkham Game?

So far there have been many leaks about a new and upcoming Arkham game, in fact some sources go far to say that there will be two Arkham games coming. One of which will be a Suicide Squad game that will be based on the upcoming Suicide Squad film and will be set in the Arkham Verse, the other is an Arkham game where the mantle is inherited by Batman's son, Damian Wayne, but this seems unlikely since there was only one reference to the birth of Damian which was in Arkham City, but it was very brief, too brief to be able to center an entire game around. But in my opinion the most likely Arkham title to happen is Batman: Arkham Origins 2, a game that would be developed by Warner Brothers Montreal. A game that connected the timelines between Arkham Origins and Arkham Asylum, and had Batgirl in it possibly, as it takes story arcs from the Killing Joke and other comics. If this would actually be true, the game would most likely be rated M, but since Arkham Knight was rated M for the Death in the Family story arcs, it wouldn't be too unreasonable.