Unfortunately, a recent interview with Sven indicated that they're only going to get the PHB content done for release (no talks about DLCs or any further material). We did get some non-PHB races, but as for now that's all we know we're going to get.
Although I'm sure/hopeful that we'll get mods for all the other existing classes and races.
True, but that above IS the character I'm playing in BG3 at the moment. There are already mods adding additional classes and sub-classes. The Sorcerer Subclasses mod adds: Aberrant Mind, Clockwork Soul, Divine Soul, Shadow Magic, and Storm Sorcery. There's The Devoted Paladin mod: Oath Breaker, Devotion, Vengeance, and Ancients. There is a Bladesinger mod, and a Hexblade mod. The Expanded Cleric Domains mod: Arcana, Death, Forged, Tempest, and War. Though the Cleric mod hasn't been updated since last year, it stilled worked with patch 5.
There are lots of mods that work with the game. I picked the Far Traveler background, that's not in the vanilla game. There is the 5e Spells mod (my favorite) that adds several spells not yet in Larian's version. A Ritual Spells mod (nice for Find Familiar). Two feat mods that add a lot. That's why I can take Elven Accuracy. There is even a mod that adds the Dodge Action.
