Joe Otterson TV ReporterAn animated “Game of Thrones” series is in the very early development stages at HBO Max, Variety has confirmed with sources.There are no details available about what the focus of the potential series would be and no writers or talent are currently attached to the project.HBO Max declined to comment.Variety exclusively reported last week that a series based on George R.R. Martin’s “Tales of Dunk and Egg” is in the works at HBO.