The question of how these hotfixes will affect the encounter difficulty are still up in the air, but all signs obviously point to them being easier than when 3.0.8 was initially implemented.
Quote from: Daelo (Source)
We just hotfixed Sapphiron's Frost Aura so it should do the damage that
was seen previous to the 3.0.8 patch regardless of the size of the raid
or your server's performance. This should be 1200 every 2 seconds in
Normal, and 1600 every 2 seconds in Heroic. You'll notice that the
Frost Aura debuff you have no longer has a duration that refreshes. The
tooltip also incorrectly lists the damage as occuring every second. The
tooltip error will be fixed the next time we make a client patch
available.
We also made a hotfix for the Heroic version of Malygos to add a
small amount of time from the point when Malygos lands after Vortex to
when he performs his Arcane Breath. This should allow players and pets
enough time to reposition behind Malygos. The Normal version already
had the additional time.
