Spells should not be classified by effect but on flavor and theme.
As before, I think you could completely remove the conjuration school. Summon spells broken up into more character specific spell types, what a wizard summons is going to be different from what a cleric summons to what an illusionist "creates" or a Necromancer "creates" or elemental sorcerer summons or a druid summons but they could all be in essence the same spell with minor variations. And all of the other non-summoning spells in that school could get reordered into other classes too- damage spells into sorcerer, teleport into wizard, prismatic spells into illusionist, clouds and fogs in warlock, and walls in wizard.
I think the wizard should be broken into 5 pieces:
A Necromancer/Warlock- does the dark magic stuff. Undead creation, demon summoning, fear effects, curses, debuffing, and physical drain attacks
A Enchanter/Psion- does the precognition (divination), telekinesis (force powers), telepathy(mind control, charm stuff, psychic blasts), and body control(self buffs). No summoning.
An Illusionist/Shadow mage- does illusions and shadow magic real well, phantasms should be under the enchanter/psion though. Creates illusionary creatures- possibly duplicating any summon or create spell.
A Sorcerer/Elemental mage- small spell selection, but mostly a blaster mage for fire, water, air, and earth. Fire w/ fire damage, Water w/ cold damage, air w/ lightning, earth w/ physical damage. summons elementals.
A Wizard- does everything everyone else does just not as specialized in the other three areas. For instance a wizard should have fear, telekinesis, and invisibility. Just not at the level the other guys have it at. Effects that should solely be theirs reality alteration, time manipulation- note that the psion has these currently.