I'm not a pure CM/WW wizard, as I am Archon, Raining Meteor, and CM/WW with my various gears for each build respectively. I would suggest changing either Blur or Evocation to Cold Blooded, as that will increase your effective DPS, which this build is all about (rather than sheet DPS). Since you keep the mobs perma-freezed, Cold Blooded increases the damage by another 20%.
Also, you can try SA-rune of choice instead of EA, unless you need that buff. I can do MP10 - farming loot/keys, and Ubers - with my current gear and almost keep mobs perma-freezed, at only 1.86 APS, 49.5CC, 10 APoC, 0 LoH (I use MW/BM & life regen atm until I get a better option on a piece of gear.). I don't know why, but I can get away with only 10 APoC and 1.86APS, in part due to my CC%, but I think something is proccing at a higher rate, like WW, than it was previously.
Finally, you have good health, so if you're dying you may want to consider Unstable Anomaly to keep you in it when you receive fatal damage. So passives are maybe CM, CB, and UA/Evocation/Blur.
If these changes make survivability an issue, then go back to where you are comfortable in terms of specs and MP.
Looks like you're on the right path. Others can add more...