The school idea is nice and all but whose going to front the bill for that or to ensure that everything is in order? If you take away control of the Mages from the Templars and Chantry they will be far less inclined to keep funding it so that the new overseer may fail and the Chantry/Templars will go around spreading rumors that such things wouldn't have happened if they still were in control of the Mages.
Middle Ground sounds nice but that seems like an impossibility atm unless something big happens as many are very angry when DA:I starts and the last ditch peace talks failed due to everyone but the Inquisitor dying.
We've also seen that leaders of the orders tend to be huge extremists.
Orsino - Blood Magic? Where? In my tower? LIES AND SLANDER! You have proof? I'm not listening! All Mages are saints, it's all the Templars fault if they even think of doing Blood Magic! Now excuse me while I drool over these notes on how to perform Blood Magic and Necromancy from by Best Buddy whose committing mass murder with Blood Magic in his attempt to master Necromancy!
Meredith - All Mages are secretly Blood Mages! The Order dictates that they all must be ANNULLED!
Anders - All Mages go free now, no accountability or any checks and balances!