Simply put, I want one.
Now, I don't necessarily mean that it would allow us to have two tracking abilities wihtout restriction. For example, it would be incredibly unbalanced to give any class the ability to track with both Mining and Herbalism.
But, I want to be able to track Humanoids and Hidden. I want to be able to track both Beasts and Elementals. Hell, take away the Hidden + Humanoid one and I still want it.
I want to be able to take up Mining without having to spend make 8 abilities useless 90% of the time (and that is of the time they ARE useful).
My idea?
Make it a 1-point Survival talent. Hell, I don't care if it is just before the top-tier BM talent. I just want to be able to farm mining nodes and beasts at the same time. I want to be able to watch my back on a PvP server while picking herbs.
Mostly, I'm just tired of there being 8 abilities that I just never use outside of PvP.