Oh yes, time for some baseless speculation. We've learned a lot about these jobs as people are very close(if not already) at 75. Anyway, remember this is Category 1, so no new spells or abilities.
For Scholar I expect something like:
Black Grimoire Skill+ (2 or 3 points per merit)
White Grimoire Skill+ (2 or 3 points per merit)
Modus Veritas Recast
-Storm spell potency increase (2% per merit)
Dancer I have no idea, I haven't really been following the job. Probably lower recast on each category and/or potency/accuracy increase for waltzes and steps.