...Not exactly.

Back when Final Wars and the super-secret new kaiju "Monster X" were freshly rumored, I had had a dream that I was watching TV and there was a sneak-peak at Final Wars on.
In this imaginary clip, the hosts or whomever were doing commentary. The clip started with this ugly chap stomping towards Godzilla, and one of the speakers noted that "this is Monster X, the new villain in Final Wars". The greenish centaur thing proceeded to shoot gravity bolts (!) from it's tail, lifting Godzilla and slamming him around the place- which looked to be San Francisco; they were fighting near the Golden Gate Bridge. After shocking and tossing Goji a bit, another new monster (which looked more or less just like a generic theropod dinosaur, but with a lizardy head) made it's entrance by leaping over X's head and knocking him down. It skidded to a halt and turned dramatically, identified by a different commentor to be "Saurian, another of the new monsters. He's going to be one of Godzilla's allies.". MX got up and charged the two, and then the clip stopped and I woke up.
Now... as it turned out, Monster X didn't look ANYTHING like this guy, at all, nor did he fight Godzilla in San Fran, and obviously there weren't any giant theropods running around either. But I still find it a weird little coincidence that, despite having been dreamt up long before Keizer Ghidorah was even rumored to exist, this Monster X was a giant, four legged monster that was shown, essentially, standing in one place while spamming "gravity bolts" to throw Godzilla around. Heh...
The design was weird and a little unclear, so I made some modifications to bring this guy to life. I had never tried drawing him before, and I hadn't told many people about the dream, so I guess he's going to be brand new to most people. I decided to bring him back because I only need one more bad guy to finish my roster at the Arena, and it hit me that this guy'd be perfect to fit the role. I just need a new name and origin for him.