I know this was an exclusive survivals item will this ever make a return ? I really want that Cat Construct.
Hopefully (Maybe) when Survival Mode is back. I haven't had the chance to get one aswell. Hopefully they will even come with more pets like this, if not for Survival Mode for episodes rewards or something.
The devs had made it clear at the time, that the shadow items on the one vendor were exclusive to that Survival Mode. However, the green hologram dog/cat companion pet/base pet boxes, along with the other hologram items on the other vendor are said to return.
Like iconic said the holographic ones should return with any future SM, that being said I have absolutely no objection to variants being introduced as just drops or vendor purchases within regular content or even events if they suit, there's nothing exclusive about the pets themselves simply the variants of the pet. (and even then t&c's allow for the return of any and all items, really)
