What will Doctor Strange protect now?

Question

We learn in the movies Doctor Strange (2016) and Avengers: Infinity War (2018) that all sorcerers including Doctor Strange have sworn an oath to protect the Time Stone at any cost. But in the concluding scenes of Avengers: Endgame (2019), Captain America returns all the Stones in their past, which means Doctor Strange and Sanctum Sanctorum in the present do not possess​ the Time Stone anymore; so what will they be protecting now?

Given the importance of Time Stone, will Doctor Strange no longer need it to fight enemies unknown? Doctor Strange used it to defeat Dormammu which would have been very difficult without the Time Stone.

Answer 1

The Time Stone ain't the only thing in this world that needs protection. Sure, it was a big deal to protect it while it was here, but it's not the only thing wizards do.

Remember that in Thor: Ragnarok, Strange explains to Thor that part of his role is to protect the Earth from intergalactic/interdimensional threats, Loki being one.

STRANGE: So, I keep a watch list of individuals and beings from other realms that may be a threat to this world. Your adopted brother, Loki, is one of those beings.

THOR: He's a worthy inclusion.

If decades of comics and sci-fi movies have taught us anything, it's that there will always be an alien race ready to wage war on us and/or mystic entities craving for whatever power might be found on Earth . Sure, the Time Stone is a powerful weapon, but that's not the only thing Strange has at his disposal.

And if you've seen the post-credits scene of Doctor Strange, you have a hint of what he will be protecting next. Namely...

Himself, and other sorcerers, as Mordo is headed towards his comic book history of killing/depowering sorcerers.