Quote Originally Posted by Betelgeuzah View Post
CON > WHM
THM > BLM

Let's not kid ourselves.
I'm guessing it's the other way around:

THM > WHM
CON > BLM

As all class skills will be re-evaluated, our best bet is to go by the names and general concepts of the classes:

Conjurer: One who summons. This is a class heavily focused on elemental power, so BLM seems to be the natural outgrowth.

Thaumaturge: A performer of miracles or magic feats - often associated with healing. FFXIV put a life-death/astral-umbral twist on Thaumaturgery, but people tend to only focus on the death side of it.