Reraise isn't suited for high-end content, isn't needed in healer-inundated normal 8-mans, and healers barely even die in level cap dungeons for reasons already acknowledged. It's also a defeatist action that sets you up to get KO'd.

Every time the cross class Raise gets brought up it really sounds like rose-tinted glasses. You couldn't use it in battle or swiftcast it, and you already had a Conjurer leveled so you wouldn't use it outside of duties either.

Also, if it were even possible to balance 4/5 roles having raises they would have to at least be on long cooldowns, especially if DoW raises wouldn't need to be swiftcast.

Overall...no.