Larian said that they want to add all core races, but that is neither a confirmation nor a promise.
Currently only the races already implemented are confirmed. Everything else, including datamining, is just speculation from our side.
Datamined races are more then speculation, they are evidence that the Devs at least have done some preliminary work on a host of races, so while they could decide not to further pursue work on any of these races, its not speculation that they started working on them, there is datamined evidence.
