There is some hope that competitive pressure will spur them to hurry up and add BL, a very popular class.
I'm not singing another game's praises here- don't get mad - I'm just pointing out that another very popular mmo has a class called "hunter" that gets to go out and "tame" animals they find in the wild - and train them up - and level them - and etc - pretty much a BL (except they can have any kind of beast pet they want - a wolf, a turtle, a black panther, a gorilla...). This class is by far and away the most popular one on that mmo.
So maybe SoE will see the light and get us a BL in eq2. I miss them, too.