I love the Worldwake symbol, by the way. The three symbols for the Zendikar block are representative of a Hedron opening. (You can see what a Hedron looks like by looking at the card art for Hedron Crab.)
Zendikar = a resting Hedron
Worldwake = An opening Hedron
Rise of Eldrazi = Fully open Hedron
The set will have 145 cards. Official previews start January 11. The Prerelease will be January 30-31. Spoilers generally start to come in during the preceding month. So around now!
The only fully confirmed card is the Smother reprint. Take everything you read on the internet with a grain of salt. Always! Because all this stuff was translated, the names may not be accurate, as well as some other things.
I decided to start a public Google Wave on the Worldwake Spoilers... I'm not sure why. It may come out to nothing in the end, but most of the things I start do. I just like organizing information, and I love posting spoiler info. So if no one else uses the Wave that's okay. I will keep updating it.
You can find it by searching for with:public Worldwake. Here are the current contents... I don't like posting all this incomplete stuff, but just to give you a taste. I'm going to be making some more speculative posts later.
Kazuul, Cliff Tyrant ?
Legendary? Creature - Ogre ? (M?)
?/?
The exact wording of this card is ambiguous. But presumably it does one of two things.
Either, it gives you a 3/3 Ogre creature token unless the opponent pays 3 for each creature he or she controls attacking you.
Or, it gives you a 3/3 Ogre creature token for each creature attacking you unless its controller pays 3 for each.
(It is also possible that it does not specify whether the opponent has to be attacking you. For multiplayer purposes, it might occur even when the opponent attacks someone else.)
Admonition Angel ?
Creature - Angel ? (M?)
Flying?
6/6
Exact wording unknown. Presumably it will be this:
Landfall - Whenever a land enters the battlefield under your control, exile another target nonland permanent.
When ~ leaves the battlefield, return all cards exiled this way to the battlefield under their owners' control.
Jace, Mind Sculptor ?
Planeswalker - Jace (M)
?:
?:
-?: Exile target opponent's library.
[?]
Exact wording unknown. One of the first two abilities presumably lets you mill a player's library by a certain amount.
Zendikar Avenger ?
Creature - Elemental (?)
?/?
Creates 0/1 Plant creature tokens upon entering the battlefield.
Summit Great Apes ?
Creature - ? (?)
~ must be blocked by two or more creatures if you control a Mountain.
5/2
Exact wording unknown. Other abilities may be included.
Bower Elf ?
Creature - Elf ? (?)
?/?
Has the ability to untap Forests.
Comet Storm ?R
Instant (?)
Allows you to distribute damage among any number of targets as long as you have the mana.
Explore ?
Sorcery (?)
Allows you to draw a card and play an additional land.
Wind Zendikon ?
? (?)
Turns a land into a flying creature.
Sejiri Merfolk ?U
Creature - Merfolk ? (?)
?/?
Gets stronger when you control a Plains.
Quagmire Vampires ?B
Creature - Vampire ? (?)
You can kick this spell as many times as you like, and it will get bigger the number of times you kick it. This new mechanic is Multi-Kick.