Scholar has always had an incredibly strong toolkit that is fun to use and that doesn't change in dawntrail. Seraphism's inclusion gives scholar a power so great that I can't help but expect it to be nerfed. If you want to solo heal content scholar is a really good choice.

Baneful impact being a DoT also changes how you think about it's use compared to other healer follow-up spells. Moving it around in my burst when a boss is on the verge of the death is very different than how I think about using oracle on astrologian for example.