we have no idea what their different class skills are yet
Well that's true. And the specializations aren't very strong in 5e to begin with.
E.g. Enchanters have to go all the way up to 10th level before they get an ability that actually has anything to do with their Enchantment spells. You could easily be an "Enchanter" and cast nothing but Fireballs. Not the best subclass design if you ask me. The relevant ability of any Wizard subclass should encourage them to cast spells from that particular school over others, starting at level 2. I hope Larian have taken that into consideration when implementing the subclasses for BG3.
To be fair, the enchanter may not get direct benefit over other enchanting spells until level 10, but he does get 2 very powerful, and infinite, enchanting abilities like "Hipnotic Gaze", leaving any enemy near you "disabled" for the rest of the battle if you want, or "Instintive Enchantment" that compels any attack directed to you to be redirected to other combatant at range of the attack, which is crazy to avoid damage.
Also, did I mention those spells doesn´t use a spell slot? They can be used as many times as you want while also not requiring any concentration whatsoever. This is absurdly OP or at least can be depending on the implementation in BG3.
