Do I miss anything if I don't play the DLC campaigns before New Game Plus?

Do I miss anything if I don't play the DLC campaigns before New Game Plus?

I'm just about to complete my first playthrough of Darksiders II, and I'd
like to start New Game Plus as soon as I can, but I haven't played through
the DLC campaigns (Argul's Tomb, The Abyssal Forge, The Demon Lord
Belial). I have all of the DLC available through Steam.
Do I miss anything (such as legendary equipment) if I start New Game Plus
without playing through these campaigns first?