Early version of the Grootslang?

So I rewatched the first Gavel trailer again and noticed something, one of the things announced was "Insane Boss Fights". And then we see some sort of worm creature crawl out in some cave. So I gotta ask, was this an early version of the Grootslang boss that was never added ingame? I don't remember any custom entity models being added until 1.19.

 

I think the Gavel Update was originally gonna have much more than was released, with an early grootslang fight being one of those things. Since Grootslangs were in the game prior to 1.20 alongside the fabled Hanja Ruin that was actually a closed NotG alongside with the whole grootslang plot point being exclusive to The Worm Holes (along with it describing rogue grootslangs as a provincial emergency which is then never elaborated on or resolved), yea it's very likely that it was an early Grootslang fight. The only ones who can confirm this are CT members who worked on Gavel.

 

Thanks for the answer, I think I'm gonna make a thread so people can speculate stuff that was never added in game.