The MCU's level of secrecy regarding new projects is legendary, even to their stars. Captain America 4 was recently confirmed to be in the works from Falcon and the Winter Soldier lead writer Malcolm Spellman scripting, but star Anthony Mackie doesn't have any details yet. In fact, according to an interview with EW, he learned about the project just like everyone else.

　　"I literally found out yesterday in a grocery store," Mackie said. "The checkout guy named Dwayne [was like] 'Yo, man. Is this real?!' I'm like, 'I haven't heard anything.' That's what I love about working for Marvel. They call you, they're like, 'Come to L.A. We wanna tell you what's going on.' So, I'm excited to see what happens, but I haven't heard anything."

　　The focus on Sam Wilson as the star of Captain America 4 comes from Sam's official adoption of the Captain America mantle in the finale of Falcon and The Winter Soldier--or, ostensibly, in the final moments of Avengers: Endgame, depending on how you want to count things out. Naturally, it would be hard to have a Captain America movie without Captain America himself, but given the early stages of development being reported, it's not surprising that Mackie hasn't gotten the phone call.

　　Still, he was quick to joke: "What would be really bad is if the movie [Captain America 4] starts and I get blown out of the sky."

　　As for actually taking the mantle and donning a new costume, Mackie says it hasn't actually set in yet--and the moment even felt a little anticlimactic in the show. "I don't know what I expected, but it's definitely not what I thought it would be. I guess I foresaw something that was much more celebratory than just being 'Anthony with a new Twitter account.'"

　　With any luck, that 'new Twitter account' feeling will go away once Captain America 4 starts production in earnest. Until then, Disney's next major MCU release is the Loki TV show, which will hit Disney+ on June 11. Following Loki is the much delayed Black Widow, which will be hitting theaters and Disney+ (for an extra fee on top of the subscription) on July 9.