Some passive talents could solve problems of the wizards. Wizards in Eora are similar to wizards from D&D settings. They pursue knowledge, train magic as apprentices by practicing arcane arts. Wizards are the skilled and trained ones among all casters, just like fighters are disciplined soldiers among warriors. The point is - they could have equivalent of fighter's Steady Aim talent but for magic.
I would go further in comparing wizards to fighters. Give them equivalent of stances. 3 stances with particular bonuses wizards could switch between as fighters do. Like Arcane Piercing (bonus PEN), Arcane Quickness (quicker casting) and the third one for bigger damage from spell or interputting strikes while using implements.
I don't like how grimoires works right now. I don't like that spells are missing grazes as result of attack roll. I think that narrow choice of spell is good for subclasses but pure wizard knows too few spells and has no interesting abilities to help him switch grimoires depending on situation.
Overall, while I like control wizards the most I had quite good fun with Evoker this time. WIth Destructive Channeling and random 30% chance to repeat attak roll I was able to oneshot-instakill one of quasibosses (the named one left from the stairs at second level of Poko Kohara) using empowered 4th level Minoletta's Missiles. But still I had too many "no pen" and misses during lots of fights. Casting time of spells is too long so I often lose spell because there is no reason to use it when it's at finish of casting or in case of change of situation I need to use something different - but the unfinished spell is lost because there is no way to cancel it and save it for later.