A Wizard in Half-Plate (+2 AC or more compared to Mage Armor) with extra HP from Dwarven Toughness will be a tough nut to crack. And they get to use the Mage Armor spell slot for something else.
If we get to "roll" ability scores in BG3 they can also start with 18 Intelligence. Will be a lot of Dwarven Wizards around. Dwarf and Githyanki seem like the power gamer Wizard builds. High Elf Wizards, step aside.
WotC will also probably unlock racial ability modifiers in 5.5e. They'd better look at the feats, too. Medium Armor Proficiency is very powerful for a non-armored class when ability scores are no longer holding race/class combos back.
