The tough thing about making a Transformers game is that you can't just make an action game about giant robots. You've also got to be able to handle the vehicle side of things, and there aren't a lot of studios out there who are equally adept at making racing games or flight sims as they are at making big robot action games.
Transformers: Galactic Trials, in development from 3DClouds, seems to be leaning more heavily on the racing side of things. The singleplayer mode has you traversing "battle-race circuits" that consist of both combat and driving challenges you have to face in the relevant forms, while collecting Prime Relics that can be spent to improve skills as well as unlocking more characters and skills. The press release says it has a "rogue-lite combat elements", which presumably means permadeath but with persistent level-ups.
