15 races! Nice. But then again, other than art and audio assets, races should be relatively easy to put in. I'd love to see the full list so far, although the previews go a long way towards telling us.
8 classes so far. This article
Baldur's Gate 3 Early Access will launch with 6 classes and 5 origin characters
states that these will be available in early access:
Fighter - Battle Master, Eldritch Knight
Wizard - Evocation, Abjuration
Rogue - Arcane Trickster, Thief
Ranger - Hunter, Beast Master
Cleric - Life, Light, Trickery
Warlock - Fiend, Great One
That's a nice mix of classes and archetypes so far, although only 6 classes instead of the 8 mentioned here. So they've got two more classes with archetypes ready to go - I'm guessing paladin and druid maybe? Or maybe bard? I honestly can't wait to see. I'm quite a bit more hyped now than I was on the first announcement, where I was definitely interested, but wary. Just about everything revealed so far by Larian has pretty much hit sweet spots for me.
(And also, wasn't that cinematic amazing? It was truly 100% D&D)