Seeing that Paul Dini was fired right when he was doing writing DLC for Batman Arkham City DLC, Paul was the lead writer for the first two Batman Arkham games but did not write Batman Arkham Origin and Batman Arkham Kight both of which bombed. But seeing that Dan Didio was fired and now Paul Dini, rummers of a New Batman Arkham reboot come out or not that surprising. If rummer are right, Dan Didio was going around DC comics saying that putting Comic book characters in video games would be a bad idea for the Comic book characters.

All this is just rummers, so take it with a grand of salt.