I...don't really understand what "illusionist" is outside of that then. The idea was already that we were combining spell schools together (e.g. the "conjurer" contains Conjurer, Evoker, and Necromancer, the "spellweaver" contains Transmuter and Abjurer), and the two schools that are most apt to being put in the same class are pretty obviously Illusion and Enchantment. If you have one class doing both Illusion and Enchantment, I'm not really sure how it isn't extremely similar to the GW2 mesmer. Especially if that's also where you put Diviner.