I am absolutely sure that nobody cares what I want or what I think but I will put it here anyway.

For the most part, more options for the classes when they choose subclasses and abilities. The wizards get two schools to choose from warlocks get two powers to chose between then a singular pact, pretty much every class at this point has an either or feel to the subclasses. I would also like to see the ability to choose a deity for non clerics, particularly with reactions and dialog options.

Now for my biggest gripe, clerics. The domains of the clerics in all of the roleplaying games that I know of are determined by the god that the cleric worships. In this game it seems like the god you choose doesn't matter at all. It certainly doesn't to the domain choice. You can seemingly play a cleric of Shar with the light domain something that is actually opposed to her portfolio. It makes it so I don't even want to play a cleric.