Why not have a melee talent tree for Hunters? I know that vanilla talents had bad melee abilities in them, but why didn't Blizzard later (in BC or WotLK) try to make survival a legitimate melee spec? It doesn't seem that radical of an idea, and would make the class more robust.
I anticipate some criticism of this idea, but they can probably be deflected by just pointing to other classes. If gear or abilities would be "too different" for a single class, then what do you say to Shaman or Druids? You may worry about losing the "iconic" hunter feel, but it's just one spec, and hardly re-defines the entire class.
I really feel like Blizzard can't even support three legitimate ranged dps specs. Survival sucked through most of BC (except for buffs) and when they buffed it for WotLK, they threw BM under the bus. They don't seem capable of providing three distinct and meaningful talent builds that are all ranged, so why not make one melee?