Further, a key moment of Ant-Man and the Wasp lays the groundwork for the Mar-Vell/Rick Jones connection as it was set up in The Kree-Skrull War. Ant-Man and the Wasp introduced the idea of Quantum Entanglement, which allowed Janet van Dyne to "possess" Scott Lang for a short time. By possessing Scott, she was able to share an important equation, which allowed her husband Hank Pym to find her in the Quantum Realm. However, she was never physically present; she just used Scott as a mouthpiece -- and he never even realized it. Captain Marvel could easily build off this phenomenon, using it to link Carol Danvers to a character like Rick Jones.
If this is indeed the case, Nick Fury may not have directly contacted Captain Marvel in the post-credits scene of Avengers: Infinity War. Instead, he could have contacted Rick Jones -- or Captain Marvel's version of him, anyway. That could be the signal needed for Lynch's character to clash the nega-bands together and bring Carol back to Earth from wherever she's been (which this writer believes is another dimension, perhaps even the MCU's version of the Negative Zone).
It's difficult to imagine Captain Marvel's adaptation of The Kree-Skrull War without Rick Jones, but we may not have to. Though Lashana Lynch's role remains a mystery, previous MCU installments have laid the groundwork for her to play a version of Rick Jones. Ant-Man and the Wasp, in particular, set up the important link between Rick Jones and Captain Marvel from the source material. Further, the 20th MCU film left Ant-Man stranded in the Quantum Realm, in much the same way Jones was stranded in the Negative Zone after switching places with Mar-Vell. Hopefully for Scott Lang's sake, Carol will manage to rescue him in just the same was Mar-Vell did Jones. Either way, it seems Rick Jones is about to make his -- or, rather, her -- grand MCU debut in Captain Marvel.
Directed by Anna Boden and Ryan Fleck from a script they wrote with Liz Flahive, Carly Mensch, Meg LeFauve, Nicole Perlman and Geneva Robertson-Dworet, Captain Marvel stars Brie Larson as Carol Danvers, Samuel L. Jackson as Nick Fury, Jude Law as Mar-Vell, Clark Gregg as Phil Coulson, Lee Pace as Ronan the Accuser, Djimon Hounsou as Korath the Pursuer, Gemma Chan as Minn-Erva, and Ben Mendelsohn, Lashana Lynch, Algenis Perez Soto, McKenna Grace and Annette Bening in as-yet-undisclosed roles. The film arrives March 8, 2019.