Today Deep Silver and Volition have released an E3 developer walkthrough with commentary which can be seen below.
Also, Deep Silver announced that pre-prdering the game at GameStop or EB Games will land you some exclusive DLC in the form of in-game costumes.
The game will come with THE IRON ROGUE and the QUEEN AMAZONIA superhero costumes.
Saints Row IV is out on August 20th for Xbox 360, PS3 and PC.