I'm early on in the post leveling experience but so far the Warden feels like a very unfinished class. If the goal was a support class, then it falls woefully short. Having a class in the vein of EQ Shaman, Vanguard Bard, etc. would be a great addition to the game. You know, a support class where everyone is glad to have you along, not "great - a Warden...."
The idea of a Jack of All Trades class is understandable if there were already so many classes that were more niche orientated. But with group limitations, why fill a slot with a class that is easily outdone in one of the "Holy Trinity" roles (DPS, Tank, Healer) by pretty much every other class?