We honestly don't know what will happen to things like Atonement. The only things we can sure [or pretty damn close to sure] about are the cores. We know CoH will be holy only. We know Penance will be disc only.
We have no idea what they are gonna do with Chakra... as I'm sure it's on the design operating table... as I'm sure Atonement is right next to it. Both of those mechanics need help, and we just don't know at this point what they'll look like until we get the biopsy results.
In order to keep the 2 spec's (Disc/Holy) different from each other, i expect they wont give atonement to holy.
They already have the possibility to get Archangel as i think thats one spell that makes Disc Different than Holy right now.
If u look at Disc its A/AA, Barrier and PW:S that makes them different than the Holy brethren with a different playstyle.
Where Holy have CoH / Chakra (holy words) and the revive as spirit talent which makes them totally different in playstyle.
These different skills define both spec's.
PI will be available for both spec's, Body and Soul will be for both (excited about this as disc).
These are fun neutral spells that doesnt really define a spec are now accessible to both.
Glad Pain Suppression and GA arent talents so im guessing they are Specialization skill.
But yea, nothing is set in stone, and all this is speculation and not based on facts.
As long as the difference between Holy and Disc is like as its right now im happy.
I for one cant wait till i get my beta invite
I'm very interested which base abilites will be changed (Chakra? Evangelism+Attonement? Shadow Orbs? Strength of Soul still around? etc)
But I'm somehow sad they brought all this new information befor patch 4.3.
Somehow I find 4.3 to be obsolete now. Not looking forward to that at all anymore... bring 5.0!! bring more information!!
They become passive, aka they are "built-in" in your class.