The next level set of spells will be going in for enchanters sometime in the next month, for 40+, 45+, or 50+ (haven't decided yet where to put the cutoff). Regardless, each one is going to cost around 2000 points to cast, so you may want to work on your intelligence.
I don't want to say what it is exactly yet, but I will say
1) they will be quite awesome
2) they will be nothing like spells already out there, as they have nothing to do with boosting stats