Larian Studios Forums Divinity General Discussion Mechanics are the most important part to get right.

I can't honestly say that I see classless systems as a net plus.
In fact, in practical terms, I only really like "classless systems" when they basically force you to make mutually exclusive choices that push you to specialize and to create the equivalent of classes (different characters with very different playstyles).
I absolutely despise rulesets where all characters end up being "jack of all trades" and able to do all basically the same thing (i.e. they are all able to wear the heaviest armors around with no downside, they are all equally competent in melee, ranged and/or magic, etc).

I share the concern about the return of the armor system ,but given what Swen Vincke had to say about it in the past I'm hopeful they got the message that the mechanic wasn't really that well-received.