MCU Phase 4: 7 Brand-New Rumours You Need To Know
3. ...And Korvac Will Be The Main Antagonist
Source: ThatMarvelScoopMaster
Interestingly, given we have vague hints of what most other Phase Four films will entail - even Black Panther 2 is said to feature Namor - we know relatively little about the next Captain Marvel. This series of rumours and leaks is the first we've heard of what the plot might entail, and longtime Marvel fans in particular are going to love the name being suggested as a villain.
In the same thread, ScoopMaster provides a synopsis of Captain Marvel 2. I won't post the ending description he gives here just incase it is correct, but the mention of Korvac as the film's main antagonist should be enough for most fans to board the hype train.
"The film will involve the Kree once again and the Skrulls, and focus on their conflict. Carol learns of a 'superweapon' and goes on a search for it, only to realize it's Korvac. She sympathizes with him; her and Korvac bond over being guinea pigs for the Kree basically. So when he betrays her and turns heel she's left devastated."
The same post also suggests that Korvac could become a recurring threat in the modern day too.
But who is Korvac? Well the character was introduced in 1975 courtesy of Steve Gerber and Jim Starlin, the latter of whom went on to pen Infinity Gauntlet, the main inspiration for Avengers: Infinity War. The villain is from another time and another dimension, and has even tapped into the Power Cosmic once before. Point being, he's more than a worthy adversary for Captain Marvel.