Recently watched a YouTube video where they mentioned the grub-eating Starfleet creeps with the exploding heads were supposed to be the precursor to the Borg invasion. But then the producers changed it up and decided the Borg would be the cube-riding mechanoids we’ve all come to know and love, instead of worm people.
I’m wondering if Trek ever fleshed out the conspiracy storyline on another show? Seems like a lot of potential wasted.
I’ve also seen it mentioned different times that they were the original iteration of the Borg. It would have been interesting to see how that would have changed things if they had gone ahead with that plan.
As for if they ever showed up again, I don’t think so. I’ve seen most Star Trek, and I don’t remember them running into any aliens like that again.
deleted by creator