It seems that we will see two new monstrous creatures for the Tyranids.
via Faeit 212 10-26-2014
Tyranid Toxiccrene/Maleceptor 1 miniature $73
Warhammer 40k: The Rules small format hardback $58
Tyranid Dice Tin 10dice $17
On a large oval base with 10 long tentacles and a face like a lictor.
A 5 wound t6 monstrous creature who is hypertoxic and shrouded. this means any hit gains instant death on a wound roll of a 6 due to a toxic cloud. This includes its close combat attacks and its choking cloud
Choking Cloud; 12″ assault1 ignores cover, lg blast. Chocking cloud is S3, poisoned 2+ and against open topped vehicles or any vehicle that has lost a hull point the attack gains armour bane.
A 4 legged beast with two large scything talons
A psyker level 2, synapse monstrous creature that has an invul save of 5+. It has shadows of the warp and a 4+ save.
It has the psychic power psychic overload, which is a 24″ focused witchfire. target must take a leadership test on 3d6 and vehicles count as leadership 10, failure causes d3 wounds no armor or cover saves allowed, and a causes a single glancing hit to vehicles, no cover save allowed. The maleceptor can do psychic overload three times a round, but cannot target the same model twice.
It can choose its remaining powers from the powers of the hive mind.
Lords of War Gaming said we will see new Tyranid creatures several weeks ago.
So this seems to fit.
It seems that we will finally get a small rulebook next week.