So... you are not interested in the expansion because you wont get a new healer job?

In 1.0 there was only 1 healer.

We currently have 3 healers, AST isnt even needed, as WHM and SCH cover the healing roles. AST is a bonus. I kinda feel like we might never get another healer.

You only play the game for them to release new healers? I am not really grasping the logic here. You played all of 1.0, 2.0, 3.0, 4.0 to play a healer released in 5.0? You hate the current healer choices? I am not seeing whats changed. We only got more job and more things and more content. You're mad that its "not fair" ? Most all Final Fantasy Games only have White Mage as a healer, and then support healer classes. I really dont see what you're expecting.

What are you even wanting as a new healer? What dont you like about the current ones so much that you feel the need for a new one.

Really all I got is "its not fair we dont get new stuff" .. but.. you are getting new stuff? You'll get new actions, new glamour, and all kinds of other "new" things for the existing healing classes. So you just are demanding a new healer job just for the sake of having a new healing job, but you dont even know what you want that said job to be?