Patch 4.0.6 are you prepared?

So, Patch 4.0.6 is now coming (really soon if you're in the US, tomorrow if you're in EU servers).
I've already written a good number of posts about this patch, so I'll divide them by profession and add some other comments:

Jewelcrafting:

• New metagems on the way!

Other changes to metagems: [Eternal Shadowspirit Diamond] the block value has been lowered from +5% to +1%

• Sockets will be added on crafted epic gear

This is really a change to Tailoring/Leatherworking/Blacksmithing, but it has a great impact also on JC, since most people will need two more gems for their equip. No changes have been seen on PTR regarding [Dragonkiller Tunic] / [Assassin's Chestplate] / [Belt of Nefarious Whispers] / [Corded Viper Belt].

Another gem cut had been added: Vivid Dream Emerald provides resilience/spell penetration and can be purchased for 3 Illustrious Tokens.

Enchanting:

• New enchanting recipes (and nerf to [Enchant Off-Hand - Superior Intellect])

Other things:
Enchant Cloak - Dodge can no longer be cast on capes below the character level 35 requirement.

[Formula: Enchant Cloak - Dodge] was one of the better enchantments for BoA cloaks (obviously not as good as [Formula: Enchant Cloak - Stealth], but still good)... So now there won't be this option anymore.

Enchant 2H Weapon - Mighty Agility required Runed Elementium Rod, which is learned at a higher skill level. This has been addressed.

Engineering:

• Engineers won't need Volatile Air anymore (well, not as much as they need now, anyway)

Engineers will both need less [Volatile Air]s and find more of them.

Alchemy:

• Alchemists and 4.0.6

I said they would have made [Lifebound Alchemist Stone] not disenchantable anymore, and they actually did so the day after I posted that... All the other information in the post are still valid, as far as I know.