TheMarshmallowBear
Benelovent Chieftain of the Ursu Kingdom
The author spends the first half of the article ing about what he didn't like in vanilla Civ V.
There really isn't much than we know of that's changed in the Diplomacy system. So I wouldn't expect to see any great changes. Hopefully the AI will be smarter and do fewer things that look stupid or random... but that will require a lot of play to uncover, and I'm sure the AI is something that will be tweaked right up to release and beyond, so I don't expect to see any answers on this subject from press previews.
My only hope is that the AI will behave like a Civ and not like a player... because to be perfectly honest i don't really understand that concept....