I'm mostly looking forward to playing this with a friend and both going Lone Wolf so we can get the same feeling we did as when played through Baldur's Gate and the likes. Also, equipping/skilling 4 people in this game is not cheap.
I would hope the savings on not needing to prepare two more party members is something that would be taken into account when balancing the benefits of Lone Wolf though, as the ability to divert those funds/equipment to your mains instead of sharing them amongst 4+ characters is a nice perk of choosing that talent.
Very true. This is why a Lone Wolf character shouldn't be equal to 2x characters but it shouldn't be far less either. I'd say anywhere between 1.4-1.7 ish should be fine. With how flanking works going Lone Wolf actually hurts quite a bit if you're not armor focused(since as far as I know, flanking reduces def rating and not armor rating)
Edit: Forgot to mention the fact that if I understand things correctly exp isn't split in Divinity whereas in Baldur's it was which made "solo" or low amount of party members much more viable due to the increase in experience.