https://www.pcgamer.com/rage-2-leak-helped-devs-avoid-competing-with-55000-ton-gorilla-at-e3/

In May, Walmart Canada leaked Rage 2—after which Bethesda returned with a tongue-in-cheek reply, before officially confirming days later. Despite being so close to E3 2018, id Software studio director Tim Willits reckons the leak helped the shooter stand itself apart from another, similarly-themed big hitter: Fallout 76. 

Chatting to gamesindustry.biz, Willits says the timing of the leak turned out to be "quite nice" for id because it'd planned a staggered pre-E3 reveal of its own. He suggests a number of journalists have since questioned the developer's intentions—some have implied the Walmart leak was staged, says Willits—but is adamant the leak wasn't planned.