*This info is old! Here is the latest information!*
First off, check out the latest rumors from Warpshadow. Summary is in the first post.
All I have to say is:
On a less sibilant note, I'm really excited. I'm a bit concerned that everything is getting cheaper just to keep up with everyone else, but maybe I'll actually take Hormagaunts again.
Too bad they're coming at the end of my Christmas break, but I should have a bit of time to work on them. The one rumor that kind of bugs me is the Malanthrope one, but only because I bought the Forgeworld one and they'll come out with a cheaper plastic one. I guess that's how FW Valkyrie and Baneblade owners felt. But, perhaps the sculpt will be different...and I'll actually be able to use a FW model without opponent permission!
I really hope they fix the Malanthrope's stats if that's the case. Right now it's a souped up hive tyrant. Look at the current model- with those atrophied T-Rex arms attached to a bulbous body. He should be a slow, implacable, drifting psychic abomination consuming all in his path. It should be weak in CC but be an immensely powerful psyker.
It's a bit early to react too much to the rumors, but I'm liking the sound of them so far. As we get closer to January, things will start fleshing out and we can all start redoing our lists.
Edit: According to the official GW blog, there's going to be 3 new metal and 3 new plastic kits. The three new metal are obviously new creatures, but the plastic?
Edit again: Here's what I think. One plastic is a plastic Tyrant. One is the mysterious monster that's supposedly bigger than a Carnifex. The other plastic is Gargoyles. The three metal ones are brand new creatures. Since they are metal, it's doubtful that they're swarm or monstrous creatures. They're probably all middleweight Tyranids.
*If you still read this whole thing, for some reason this page has been viewed THOUSANDS of times, probably because (at the time of writing this) I come up as the first choice for Tyranid rumors on Google. I have no idea why this is the case, this post isn't that helpful but I'm flattered by all the attention.*