I think there's one thing that's being danced around in this thread.
Warriors are beastly at both of the things they do. Arguably, in the right hands, warriors smash everyone in both single target and AoE DPS, and they are vastly superior tanks to both rogues and clerics.
The coming changes in 1.8 continue to support the warrior being superior in DPS, at least in a single target sense.
As for a support role- what exactly would you want a warrior support calling to do? Healing is out of the question, as already stated by the devs. So... are you looking for some type of combat buff bot? Didn't the Archon and the Bard already corner the market on this?
And even if some type of combat buff/DPS hybrid were to emerge, how would you balance a warrior in plate as a buff machine, versus an Archon mage in cloth?
Aside from giving warriors something else to queue as, what general purpose would this serve?
I'm not trying to put down the idea, mind you- I'm trying to understand the rationale- ASIDE from having a 3rd calling to queue as in LFG- as to why this would be beneficial.