The copyright to the original Tremors screenplay is now back in the hands of its creators at Stampede Entertainment
In short, Stampede created Tremors, it’s three sequels and the 13 episode television series. They wrote a script for a fifth film, but Universal decided that it didn’t want any help from the creators.
Universal went ahead with its own ideas and created films 5, 6 & 7, which are frankly crap. Now Stampede has the rights back to the original film, they can make their own sequels with graboids and characters from that first story. They can’t use anyone, or creatures from the rest of the film series. That’s a bit of a shame as I really like the Shriekers from Tremors 2.
Continuing your spoiler for the first film
Oh, that makes more sense. The scale makes it look like it should be the full graboid, not just one of the tongues.