"TBD," McFeely told Backstory Magazine when asked if the writers mapped out where Loki goes after his last-minute escape.
"Probably to cause some havoc in Asgard," added Markus. McFeely agreed, saying, "It's probably mischief."
When pressed about Loki escaping a branched timeline before it collapsed, McFeely said, "Listen, we don't work at Marvel, man. I don't know."
The writers, who penned all three Captain America movies as well as Avengers: Infinity War and Endgame, are finished with Marvel Studios — for now — and admitted they aren't privy to the secrets of Phase 4 and beyond.
"We're gone, no. We are not working for Marvel at the moment," McFeely told the Los Angeles Times at San Diego Comic-Con.
Loki was murdered by Thanos (Josh Brolin) in 2018 before the time-traveling Avengers from 2023 made it possible for 2012 Loki to snatch a Tesseract and teleport away, capitalizing on commotion caused by an angry Hulk (Mark Ruffalo).
The adventures of that Loki will be explored in his own Disney+ exclusive series, as confirmed by Marvel Studios president Kevin Feige at Comic-Con.
Concept art presented during a Disney+ presentation in April showed Loki wandering the streets of 1975 — as evidenced by a marquee advertising blockbuster Jaws — supporting early details from THR that said the trickster would pop up "throughout human history as unlikely influencer on historical events."
In June, Hiddleston told THR the show would be a "new departure" for the adopted brother of Thor (Chris Hemsworth).
"It is a constant source of surprise and delight that these films have connected with people," Hiddleston said. "I knew he was a complex figure. Intelligent yet vulnerable. Angry and lost and broken and witty. I thought it was an amazing opportunity and it's grown into this network of movies. I could never have expected it."
Loki will premiere exclusively on the Disney+ streaming service sometime in Spring 2021.