Now from someone with the book, we have the Perils of the Warp tables that are the results of rolling two or more 6s when attempting to cast psychic powers. Lets take a look at the table below to see the new devastating effects of tangling with warp energy.
Please note that these are still rumors as we have not yet had an official release of the new rulebook.
via an anonymous source on Faeit 212
Perils of the Warp
1. Dragged into the Warp: Psyker takes a leadership test, if passed suffers 1 wound or glancing hit no saves.if failed he is removed as a casualty and his unit takes d6 S6 AP1 hits. The hits come from the psyker for allocation
2. Mental Purge: Psyker suffers 1 wound/glancing hit no saves. randomly select one power from the psyker. its lost for the rest of the game.
3. Power Drain: Psyker suffers 1 wound/glancing hit no saves. if its the psychic phase, both players lose d3 warp charge points
4. Psychic Backlash: Psyker suffers 1 wound/glancing hit no saves.
5. Empyric Feedback: Psyker takes a leadership test. if failed Psyker suffers 1 wound/glancing hit no saves. If passed no effect.
6. Warp Surge Psyker takes a leadership test. if failed Psyker suffers 1 wound/glancing hit no saves. If passed psyker gains a 3+ invul, fleshbane, armour bane, and smash until the next friendly psychic phase.