We cannot predict what will be in future, but we can try. When we will make our setups more universal, we will probably be prepared for changes better, than current standard CM/WW setup is.
Well, imagine the day when Wicked Wind will be changed ("nerfed"). That day will, according to devs, for sure come. And it will destroy 2 things: LoH and Freeze.
It's obvious for some, but for others, this thread might change gearing strategy in upcoming months. Becouse lot of us are gearing for long term, not buying whole set in 1 week.
Life on Hit
eDPS vs. DPS. Today, Freezers rely on monsters that stand in 1 place inside our stationary Energy Twisters. Those twisters tick so many times each sec, that we have almost infinite Arcane Power and can cast more and more powerfull spells with high AP cost very quick. This highers our eDPS.
Usually CM Wiz has <200k sheet DPS, but our eDPS is still not THAT high to make LS work that good as good LoH setup.
Imagine the Wicked Wind change that will destroy our freeze. Monsters will not stand inside our Twisters any more, and we will not regain needed life thru Life on Hit.
Wicked Wind change will probably destoy our Uber Bosses quality freeze. But not just that, it will very likely make us freeze just once per few seconds.
We will recieve much more damage and when you combine this with non functional Life on Hit, then overall Wicked Wind nerf will make standard Freezer setups just a pure junk.
What we can do now?
Very likely, gear yourself for less Attack Speed, higher Crit Chance and add Life Steal. You can have the highest AS, but when you don't have stationary monsters inside your AP generator Wicked Wind, you can cast just 0AP cost spells, that do crap damage.
High Attack Speed will be less sexy than it's now, and same for LoH. Will LoH be the new Thorns? I hope it will not be THAT bad.
Building most Universal Setup
We cannot predict what will be in future, but we can try. When we will make our setups more universal, we will probably be prepared for changes better, than current standard Freeze setup is.
Life Steal? Well, currently our only LS slot is a weapon slot. Put some Life Steal sword/dagger there! Will we get new items that will make LS possible for us in different slots too? Good for us! We will be able to rock higher MPs even with <200k DPS setups again, when we will have 2x LS.
Attack Speed? Lower it in favor of sheet DPS. Prepare to hit less but to deal more damage, with Arcane Power pool in mind. High Attack Speed makes your Arcane Power pool empty quick when you use channeled spells, and your Meteor hits are smaller even with so big AP costs.
Be in the middle
All classes use Life Steal in Inferno and we should go back there again, like in pre Freeze builds times. When our enemies will no longer stand in 1 place frozen, we will be making less hits, so we need to make them bigger - lower your attack speed.
TOP SNS guys are wisely loosing AS breakpoint (and LoH) to go for LS weapon.
Will Chantodos Wand get 1 more roll to give us all Life Steal on top of what we have? Will we be able to get Life Steal also in different slot than weapon, like Barbs/monks? We don't know, but it's very likely that Chantodos Will will loose it's magic as there will be less demand for high AS.