That, by the way, is pretty close to asking for the moon. The AI is already reasonably smart and that's already pushing into the limits of just how good AIs can be made today.
The AI in D:OS is actually gimped, and not pushing any limits. If it were not each engagement would be borderline impossible. Give the AI same skills, spells, feats and stats as player and we'd be fighting each fight for our lives.
This would also not be fun.. in the turned based initiative-rules-all combat system D:OS has anyway. This is why games either do real-time with pause, or turn based in a battle area and turn based or real-time with pause on an over-arching map. Anything else is impossible to balance.
Note: It is possible to balance the current game if magic had cast time beyond "instant"