Anyway, theres a link with some speculation about what races are available.
So from this video, the races more or less known from the available game footage, which according to a statement by a Larian employee will give you a good idea, are:
- Humans - Elves - Dwarves - Lizard(men/kind/folk) which apparently Larian just calls Lizards which makes absolutely no sense to me because lizard is already the word for a type of animal. So whats bad about using an artificial word that does NOT clash with a well established real world word, like in TES Argonian ? - Orks, or Half-Orks, or something that looks very much like D&D Half-Orcs
Also, speculative, these races could also be playable, or appear as companions:
- Undead which have been playable in Original Sin 2 and who can use magic to make themselves appear as any race - Imps which have not been in Original Sin 2 and have never been playable, but are part of the lore as a sentient race - Eternals which are a part of the lore as the precursors to all races - Demons, from the plane of Tartarus (Hell), interesting for more evil content / gameplay, as it is known from Larian - Renar / Renari, from the plane of Nemesis, part of Beyond Divinity content, which could make a return
All in all I'm under the impression this is a surprisingly short list of races that are playable, and a surprisingly low number of race differences as well.
For comparison, in BG3 there are a total of 11 races and a total of 31 subraces. Not all of them have much differences (Lightfoot vs Strongheart Halfling barely matters 99% of the time), but overall theres a substantial difference in gameplay from picking your race.
There is also speculation about classes but the video author merely lists the classes from the previous game. If nothing else, there are definitely a lot of classes, with all kinds of multiclassing possibilities.