According to some publishers we will see it in May 2011. If by that time the legend will come than it will be hot month for all W:I fans.

To this day we only saw those cards:

- This one Action: When this unit attacks sacrifice X development to serach the top 5 card of Youre deck for a unit with printed cost X and put it into youre Battlefield. (or something like that )

I almost forgot we also can gues from the description that there will be also: Bladelord (HE), Enraged Manticore (DE), Luthor Huss (E Hero), and the Gyrocopter (D).

Once again, thanks for the info.
I guess the complete translation for Juggernaut of Khorne would be:

Action : When this unit attacks, sacrifice X developments to search the top 5 cards of your deck for a unit with printed cost X or lower and put it into your battlefield attacking. Then shuffle your deck.

I think Masque of Slaanesh is playable but I'd rather have Keeper of Secrets instead of the Juggernaut in the 6-cost slot.

Here's an up-date about the release date - the game will be avaliable in June 2011 and not sooner. It will be released a month after the legends Expansion hits stores.

Btw if someone forgot, we are expecting another nice card for Chaos in the near future.

This card, mage and plague bomb can do the difference. Actually I think this card can finish of the enemy