Here is apicture of the slide in that presentation about the implants.
You must be referring to the plan to change the Slave implant bonus to increase shield HP. We’ve got no real timeline on this. CCP’s prepping a huge revamp of Citadel mechanics for Winter 2018 so I don’t expect to see them anytime soon. The only new implants I recall we’ve seen so far are the Serpentis Asklepians.
I doubt it’s going to happen anytime soon.