I quite liked Pacific Rim's approach to monster design. Yes, the monsters were all CGI, but they were designed to have the proportions of a suit -- to make it look like it could be a wearable costume -- if it ever came to actually building one for an actor to wear, both as an homage to old kaiju movies and as back-up for production if needed.
Frankly, I wouldn't mind it if a future Trek production adopted that philosophy for the Gorn if they decide to go down the CGI route. One thing about the Gorn in IAMD is that its flexibility and darkness not only disconnected it from the 60s design, but made it just plain difficult to see what the thing was actually doing. The fight with Archer was thus fairly unconvincing.