I'll be honest, i'd love a part before the intro where you are just a person with a bag of gold and need to buy you're gear from like baldurs gate or one of the surrounding towns perhaps? (whatever that may be) before getting snatched by the mind flayers (definitely not a patch 6 thing though)

Paladin class feels like it's wanted by a lot of people including me

Customisable starting armour (even if it's three styles) would be nice to have a unique look even if it's only slightly different

Favoured colour (like above being able to choose the colour of you're tabard/clothes and potentially pattern)

more "unique" type weapons

shorter longsword handle (it looks like a small greatsword at times which can be off-puting when using it with a shield to me)

Origin characters or even one of them becomes playable (unless it would spoil anything down the line)