Kein;
Project E is also set in the Divinity Universe (see Lar's post
here).
Did you read it carefully yourself? It says nothing about Project E on particular, post dated 2010 year, at that moment we didn't know neither about E, neither about D, which means he -- Lar -- could mention any of it an. Consider his note about "classless" thing I can safely assume he was talking about Dragon Commander.
New "isometric" RPG from Larian.