The level 75 talent Paralytic Poison will be removed. The new talent will be "Internal Bleeding." This will be an additional bleed, based off of your Kidney shot. A successful KS causes the bleed.
Venom Zest: Increases max energy (does this stack with other energy increases?) and increases energy regeneration for each enemy poisoned, up to three. This will mean more Fan of Knives use, I think, except for Combat (since Fan is being removed for Combat.)
Shadow Reflection summons a shadow that "memorizes" what you do for the next 8 seconds, then replays those strikes on the target. This could be rather cool and could really extend your burst. Will it copy Shadowdance and all the strikes used? If so then this might be brutal in certain situations, especially if you can pop it with all your "on use" cooldowns and trinkets. Don't expect a PvP target to hang around for all this damage.
Death From Above empowers your weapons with Shadow Energy. This is a finishing strike (damage is based on your combo points used) which lets you attack all nearby enemies and then leap up and crash down on the main target for some serious damage. Could be a lot of fun if done right.