Great update. The druid sounds awesome -- I will probably play one, I am in that mood nowadays.
However, I am sorry to say that the wizard is just ... meh. It sounds as you have taken the worst aspects of the AD&D wizard, kept that and thrown out all the rest. Just to name a few:
The grimoire is very illogical. If it is not the wizard who shapes the magical energy, but the grimoire: a man- (or something else-) -made item, then how did they came into existance in the first place? It would be much better if, say, the wizards had scientific knowledge of different material, shapes, etc. and could use those as foci (like components in AD&D, just not so random). Don't get me wrong: I like grimoires, but having them as the only form of focus just doesn't cut it for me. The two ideas can actually be connected very easily, e.g. if ruby has an affinity towards fire, you have to write the Fireball spell into your grimoire with an ink made from ruby powder. Why do you have to pay copper pieces when you learn a new spell from an enemy's grimoire? To whom do you pay it?! I think it would make much more sense to have some other cost, e.g. while learning the spell, it could take up two slots instead of one and/or even being uncastable until you learn it. Also, the idea of materials as foci could actually explain why you lose money (have to buy that ruby ink...) The spells. While the latters ones are OK, it's a bit disheartening to just see Burning Hands, Magic Missile, Shocking Grasp, etc. rehashed. Also, with a fixed list of spells, where does the "experimenting" part come into play?
Sorry for being a bit too harsh, and I understand that you probably wanted something traditional in the wizard, but I can't help but feel it a bit lazy.