Don't make back to back posts like that when you can combine them. Also the changes you listed have been discussed earlier in the thread.
I haven't seen these changes brought up yet:
* Arcane Blast changed. Each time you cast Arcane Blast the damage is increased by 25% (instead of 15%) and mana cost by 75%. Stacks up to 3 times and lasts 3 secs.
* Living Bomb changed : The target becomes a Living Bomb, taking 1380 Fire damage over 12 sec. After 12 sec or when the spell is dispelled, the target explodes dealing 690 Fire damage to all enemies within 10 yards and knocking all targets up in the air. This spell can only affect one target at a time. (1010 Mana, 35 yd range, Instant cast)
* Deep Freeze casting time changed from 1.5 second to instant.
Living bomb looks pretty fun now, sort of SoC crossed with Unstable Affliction