Anyone's guess at this point. Maybe the plot of Halo 7 will be MC trying to stay in Fortnite ala Wreck-It-Ralph. 📢 The Matte Black style for The Master Chief outfit is unlockable!Play a match ...

so there’s no telling when Master Chief will return. There’s even a special black alt-style you can unlock by playing with your Fortnite account on an Xbox console, which is a really neat ...

Over Fortnite’s seven-year-long lifespan, a wide cast of varied characters from all mediums of pop culture have appeared in the game as outfits for gamers to play as in Battle Royale and other ...

So, yes, if you need to dress up as Master Chief (in matte black ... to get it in Fortnite at any point in the future and there would be "no time limit for unlocking this style." ...