WARNING: The following contains spoilers for The Last Annihilation: Wakanda #1, available now from Marvel Comics.
In The Last Annihilation: Wakanda (by Evan Narcisse, Germán Peralta, Jesus Aburtov and Cory Petit), Emperor T'Challa answers a call from S.W.O.R.D. to help save the galaxy as Dormammu and the Mindless Ones wreak havoc. As they sweep through the cosmos, various factions of the intergalactic alliance seen in Guardians of the Galaxy are struggling to cope, which inspires Black Panther to send aid in the form of a small contingent. As this decision is made, a fan-favorite hero from the Marvel Cinematic Universe is set up to fulfil a major role in space.
After the events of recent issues of Black Panther, M'Baku is now on Earth after a reality-bending adventure. This story picks up with the Wakandans from space now integrating with T'Challa's kingdom, and M'Baku trying to find a place of his own.
This version of the Wakandan doesn't want to be vilified like the fallen M'Baku from Earth-616 and instead hopes to chart his own path as a leader. This resolve convinces T'Challa to send him as Wakanda's spear, alongside Shuri, Manifold and Vibraxas, to protect one of the Shi'ar's worlds, Aerie. M'Baku is reluctant until he realizes that this is a chance for him to prove himself.
M'Baku proves to be a powerful warrior, holding his own against the likes of Warbird and Gladiator, and coming up with a plan to save the day. As Aerie's moon is turned into a mindless one and about to fire a deadly beam of energy at the planet, M'Baku uses satellites from Planet Bast to absorb the beam and fire it back. With some help from Storm's mysterium, the plan is a success and the Mindless Ones are disintegrated.
T'Challa is ecstatic as he applauds what his friend has done. He suggests the warrior's fate is in the stars, which ties into what could happen to the character in the MCU. With Shuri looking after Wakanda on Earth in the films, M'Baku would be a great choice to help defend the space ways.
M'Baku could potentially partner with the Guardians, offer assistance to Thor, or take a Wakandan contingent to explore the vast reaches of space, akin to Ta-Nehisi Coates' vision. This could effectively make M'Baku Wakanda's space ambassador in the MCU, giving him the opportunity to extend the Jabari tribe's reach while simultaneously honoring his kingdom.
This could lead to a pioneering role for M'Baku, placing a more prominent light on his character in the MCU. Plus, with the Shi'ar still to be introduced, as well as other cosmic characters like Adam Warlock, M'Baku's blend of action and comedy on the big screen would sync up perfectly for the drama and firefights to come in the star ways.