It would be cool to have different perks to each specialised hive. (the chamber it's connected to)
First of all, a crag hive should have more health, a shade hive should always be cloaked (unless attacked), a shift hive should generate more energy (for building drifters and infest).
Second, maybe these hives should also be able to launch the triggerable ability the connected chamber has (umbra/cloak/...)
Third, the most difficult for the developer team: create 3 specialised models for the hives.
I can imagine the crag hive to have large armor plating on the sides, protecting his weak belly. The shade hive should become more transparent, with maybe a more blue-ish tone, more tendrils hanging off from the top,.... The shift hive: -not really an idea for the looks of it- Maybe a slower version of the burning animation (so it looks like a very active, energetic hive) combined with being slimmer, higher off the ground or swinging to the sides a bit.