OK so that's where I'm confused I guess. From what I see there are only pack types currently available - Revenge, Plunderer, Visionary and Disavowed.
For example, Nexu is listed as dropping from: Strategy Alliance Pack. Is this pack not available any longer, in essence making these companions limited edition? Or am I just missing Underworld Alliance Pack, Strategy Alliance Pack, Force Alliance Pack and Anarchist Pack on the Cartel Market? I only see 4 available under packs (Revenge, Plunderer, Visionary and Disavowed)