Disney+'s as-yet untitled Loki series could learn a lot from Kid Loki's Journey Into Mystery run. For one, if the rumor mentioned previously is to be believed, the Journey Into Mystery formula would give Hiddleston a role much more powerful than "narrator." He could lend his voice to the devious Ikol, Kid Loki's troublesome magpie sidekick; this could allow him to inject a lot more personality into the part, with more room for him to have some fun along the way. Additionally, this framework would allow Hiddleston to appear in a cameo role, thus giving him his due, before handing the reins over to whatever newcomer fills that horned helmet of his.
What's more, the Journey Into Mystery has its supporting cast built in without relying on major characters like Thor, Odin, Sif and the Warriors Three. Sure, there's space for these beloved characters to appear in the series, but they aren't crucial to the story. Instead, the spotlight would fall on Kid Loki and Leah; it would also pave the way for some other Marvel characters to join the MCU proper, like Daimon Hellstrom and Nightmare. Plus, who wouldn't want to see a fresh-faced Loki accompanied by an adorable hell hound puppy?
While the Loki series likely wouldn't be a faithful adaptation of Journey Into Mystery, the comic book series provides a story with a definitive beginning and end -- a rarity for a character with such a long history. For example, Loki's death as it exists in the comics lays the groundwork for his return as Kid Loki in the MCU; while the MCU series would have to tweak some things about it, the blueprints have been established. If the untitled Loki series is truly limited and does not receive another season, the story would have an ending built in that brings it to a thorough, fan-tested conclusion that leaves open a world of possibility. It's also important for a serialized story to know what it is working towards, so the Journey Into Mystery framework fights half that battle.
However, if the series does continue past its inaugural season, the Kid Loki storyline provides an allowance for a real-world problem, in that it would allow its child protagonist to grow without impacting the plot. It didn't take long for Loki to transition from "Kid" to "Teen" in the comics, but a young actor playing the character would get there naturally sooner or later. Additional seasons could deal with Teen Loki's new problems as the actor grew into the role.
Indeed, the untitled Loki series could take more than inspiration from Journey Into Mystery. Disney+ could easily snag the comics' title and turn it into an anthology series, much like the source material. The Journey Into Mystery comic series -- which debuted Thor back in 1962 -- has long acted as more of an ensemble piece, especially in recent years. In fact, after Gillen's time on the title concluded, Kathryn Immonen and Valerio Schiti took over for a criminally underrated run that revolved around Sif instead of Loki. This would also be the perfect place to introduce Beta Ray Bill, something Avengers: Infinity War directors Joe and Anthony Russo have been trying to do for quite some time now.
When it comes to building a Loki series, there's plenty of inspiration to be found in Marvel Comics. After all, the character has existed since 1962, as introduced alongside his brother Thor. However, the Disney+ Loki series would do well to draw from Gillen's Journey Into Mystery run in particular. If the series were to pull from Journey Into Mystery, it would give Hiddleston a way to pass the torch, while introducing a host of other interesting characters and ideas.
While Disney+ is targeted to launch this year, no release date has been announced for the as-yet untitled Loki series.