If you go to 13:12 in the video, they go into the arena, and in it you'll find giant worms with very similar artistic looks to the Aehallh Worm in our game.
Not only that but the animations and everything about it (including that your fighting them in an arena in a hunting/ gladitorial competition) bear close resemblance to what we have in the STO episode of "Coliseum".
Um, no... worms have always been in the Guild Wars games. The small ones are "worms" and the giant ones are "wurms." GW2 is upping the visuals and animations, but they always looked and acted just like that, years before STO was made.
The original Guild Wars has a number of "Wurms"( The official name ) since the game was released in early 2005. They ranged from Lava to Snowtypes and everywhere in between.
Of course they probably got it from Dune, but still.
If you go to 13:12 in the video, they go into the arena, and in it you'll find giant worms with very similar artistic looks to the Aehallh Worm in our game.
And they look remarkablly like the "worms" in Hellfire Peninsula in WoW.
There is very little you will not be able to find in other games if you look hard enough. There is very little that can be original about a worm, a human, an orc and so on and so forth. It is well known the industry tends to borrow from each other.