I think that Wizard should create Crafting Only Spells. These don't have to be uber strong spells but just a new 2-3 pip spell that can only be created through crafting. I think that'd be a way to get more people interested in crafting.
I'd also like to see different convert spells. Like maybe an Ice to Death convert. Or Life to Fire. These could be Crafting only spells as well and would add a new dynamic to battles.
the prism idea would open up a whole new world of epic damage for those players who like to stack their attacks as high as they can(including prisms back and forth) but more people in crafting means more people complaining on actually having to do .... WORK! dun dun dun. Some people on here just whine when they dont get instant gratification on a goal and it gets really annoying