Good point. If they've been shown on Crits Happen or elsewhere they aren't new.
I also like to see a lot more cards that are school of magic based vs specific mage based.
So instead of Necromancer only, Dark Mage only is my general preference. It adds more flexibility of play and more variety, so you aren't locked into a specific mage. So if there is a good dark spell the Warlock being able to cast it also adds more flavor to him. Or Nature Mage items could also be used by the Beastmasters.
I can see how a very few specific items should be mage specific to make them unique but hopefully most cards are school based not mage based if they are limited at all.