What do you want your wizards to be like in D&D Next?
For instance, do you think D&D Next should be a high fantasy setting in which wizards cast dramatic effects such as Wall of Fire or Meteor Swarm all day long or do you think that spells should be something special that wizards can’t cast more than a few times per day?
If the wizard can only cast spells a few times per day, the wizard needs something useful to do while he’s not casting his big spells. What kind of at-will attack would you like your wizard to have? Unlimited energy attacks like in Harry Potter? Fire and lightening all day long like in 4th edition? Your pathetic crossbow like in 2nd edition? Sword and staff like Gandalf? Crossbow at low levels and then a magical wand or staff with at-will attacks at higher levels? Any other ideas?
What about spells that take time to cast like in 2nd edition? Do you like the idea of a game where a wizard needs one full round to cast his spells during which he can be interrupted? Think “oh crap, somebody get that wizard before he obliterates us!”