Well, the information coming out on Tyranids is legion!
Here is one credible source who answers some questions on the new Tyranids. Note that the Nids are coming in January!
via Endobai on Warseer
Recent rumours, most likely from 4chan are mostly valid, but there are fakes coming from more... creative sources
Some might be still spot on, so I will only discuss those things I can confirm or deny easily.
1. Synapse gives eternal warrior
Not proven yet. Seems a good deduction considering the price of the Warriors which remains more or less unchanged, but so far I have no solid confirmation.
2. Gargoyles are troops.
Cannot confirm that. FOC changes via HQs are possible, but right now just a speculation.
3. Trygons (primes), Carnifex, Hive Tyrant, Tyrannofex, Venomthropes have significant point decreases
True. Values are posted elsewhere, cannot tell if all are accurate, but in general there is a point decrease.
4. Zoanthropes come with Psychic Scream, and warp blast as standard
Nothing supporting this. I said some creatures are assigned specific powers and in this case it is a prime candidate, but right now I cannot say a definitive yes.
5. Brain leach devourers no longer strength 6
6. The Crone has a massive vector strike
Don't remember, but both are quite likely.
7. Tervigon, Warriors, gene stealers have significant price increases
Warriors and Genes stay the same, upgrades are either cheaper or more expensive, but the basic cost is identical.
Tervigon is more expensive, by about a nude Warrior cost.
8. No Doom, Parasite, Spore pod.
Cannot say for sure, but no confirmation they are and no traces of their presence I could find.
9. The big cannon bug has two different firing modes, one being a D3 Large Blast and one being multiple high strength, low AP shooting attacks.
Have no idea why it is supposedly D3. One concentated large blast with Ap2 and S7 or six lesser shots (six barrels).
BTWInteresting bit. The gun is the brain of the creature, the grinning imbecile below is just the muscle useful to allow the brain to calculate all those things it likes and no doubt design subtle works of surreal art from the splattered remains of the enemy. Think Master-Blaster from 'Mad Max 3'.
10. Hungry eyes bug has the ability to magna grapple vehicles and enemy troops.
Nice, but pure speculation so far.
Psychic powers
Primaris: Dominion, blessing, +6" synapse range for the casterDon't remember.
Catalyst - FnP for caster and unit, and another unit in 12"True.
the Horror - Broodlord have this powerTrue.
5. Psychic Scream - 1 charge, nova 6", each target takes 2d6+2 minus its Ld wounds without covers and armors
6. Warp Blast - 2charges, witchfire, unchangedDon't remember.
Will have access to BRB powers.
No reason to disprove it now or earlier.
More coming!
Nykona