Couple of random points that may or may not be worth considering :

1. Healers DPS both in terms of amount and rotation is going to change radically over the next few years given the stated goal of a move to more solo RPG playstyle in the game.

2. Boss damage has changed so much (spikes instead of constant dmg output) that WHM feels totally gimp to me compared to how it was historically. It used to be that Regen >> all for healing but now Regen and Medica (I/II) are far less important than they were. WHM needs help - as someone who has played WHM from the beginning I was shocked at how poor the experience of playing WHM now is compared to AST and Sage.

As an aside, Sage needs some help with Party heals for 4 man dungeons. It's a superb partner to a second healer in 8man/raid but its verging on gimped for healing multiple targets that can't avoid damage in roulette groups.