Every week Matthew Rossi writes The Care and Feeding of Warriors, a column dedicated to the plate-wearing, rage-using, every-weapon-but-wands-wielding men and women out there in the worlds of Azeroth and Outland.
Well, we don't know many specifics yet, but we do know that the first Hero Class in World of Warcraft is coming with the Wrath of the Lich King expansion, and it's going to be the Death Knight. We know that much, and we know they're going to be tanking/dps hybrids who will, according to Blizzard, tank with 2h weapons and while dual-wielding. You know, those things most warriors get yelled at when they try and do them. Hell, I've even told you not to do them, and now here comes the DK and he not only can do them, he's expected to.
And it's not as if the Death Knight will be arriving as your sole competition for tanking roles. We already have Feral Druids and Protection Paladins fighting for the tanking spot in instance runs, each bringing abilities to the table that no warrior can match. Ferals have much higher armor and HP and can feral charge in combat without having to switch stances, and paladin tanks are the unquestioned kings of AoE tanking with their Consecrate and Righteous Fury/Improved Righteous Fury talents.
Warriors are not the only tanks and haven't been for a long time now. In fact, for a while after the release of The Burning Crusade, warriors weren't even the preferred tanks in the new five man instances, with both ferals and paladins seen as better equipped to hold aggro on the multi-mob pulls required. A buff that allowed warriors to use Thunder Clap in defensive stance helped us a bit, but even now warriors are mostly seen as the kings of high-end raid tanking, especially on bosses, rather than all-around first choices for tanking in any situation.
Believe it or not, that can actually be good for you as a warrior... if you are lucky enough to run with groups that are educated to a warrior's particular strengths. I used to be very opposed to other classes coming in and tanking, it's true, but I've seen good tanks (and, admittedly, some really bad ones) of other classes and I think that having more options in the tanking role can be beneficial to everyone, if there is a willingness to let warriors fill more than the tanking role themselves.