I'm super hyped about DRK and I have no qualms about it being a Tank ^_^ My main is a PLD but when DRK comes out that will be my new main. Why? Not just because it's new because:

Black/Red are my favorite color scheme.
I've always like my Dark evil things.
Swords are my fav type of weapon.
Because it can be related to Batman!

How will it play out? I can't say for sure, I will only go back to my PLD if I hate DRK but here's hoping it be a class I enjoy.