Ok... Let's walk thru this..
In the Infinity War movie:
Thanos gets all 6 stones.
Thanos creates the blip wiping out half of everything.
At the start of the Endgame movie:
Thanos then destroys the stones & is then beheaded by Thor shortly thereafter.
5 years pass.
Avengers go back via Quantum realm & retrieve the stones.
In the process, Loki escapes (& thanks to that Disney+ series we learn more about the Multiverse and how some infinity stones are kept together in a desk drawer at the TVA).
Avengers use the 6 stones to reverse the blip.
Thanos arrives and another big fight happens. This time Iron Man prevents Thanos from using the stones to whip out half of everything but instead uses the stones himself to wipe out Thanos & his forces before dying himself.
Cap goes back to return all 6 stones from where they were taken and lives a life with Peggy Carter before returning to present day.
The stones then continue on their paths thru time.
If its canon that Thanos destroys the stones & they are gone:
a) When & How did that happen since Thanos is a dust cloud & snapped away himself & there is no longer a great battle in Wakanda for him to get the stones together & blip out half of everything again????
b) Why can't a replacement green time stone from the TVA be obtained for the Dr Strange/ The Sorcerer Supreme??
c) In the old comic book canon (from the 90s, I still have the comics themselves) it was Eternity & the Living Tribunal that decreed the Infinity Stones could no longer be used together as a group (but the stones are still able to used individually).
Yes, the stones are destroyed in the prime timeline. The restoration of the stones to the past does not change that.
The Blip still happened. And Prime Thanos still destroys the stones. As confirmed by Marvel:
As for your questions: I never said that Infinity Stones could never be used again in the films. It is clear they still have a role to play at some point.
My point is that Strange having a new Time Stone is noteworthy and supports some of the theories about this Strange is different from Prime Strange because the Prime Stones are gone. Elements of Strange's behavior, and having a wayward Stone from another reality, suggests there is something going one with him.
Anyway, to your questions:
A) The 2014 that Warrior Thanos came from is now a different timeline. If his 2023 death mattered to the Prime Timeline, the entire timeline would have reset when he was dusted. It did not. Everything that happened in the Prime Timeline is still intact.
B) I never said that could not have happened. I only said the Prime Timeline stones have been destroyed. For Strange to have another Time Stone seems to support the theory that several have posited that this Strange may be a Strange from an alternate timeline, or otherwise has been to different timelines, or this Strange is an imposter. Possibly Loki himself.
C) Yes, I know about the sequel to
The Infinity Gauntlet, The Infinity War, and the outcome of
Adam Warlock and the Infinity Watch and the restraining order against the use of the stones in tandem. However, the MCU has not yet established many elements of that storyline. There is no reason to believe that the current MCU will go down the path of
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That said, my personal theory, very rudimentary and not fully thought out, is that the Time Stone, because of its properties, can actually exist in multiple points in time at once. But that this can only be achieved by someone immensely skilled in sorcery.
-Or-
Strange has gone back in time, using the quantum realm, to retrieve the stone, to use it to undo something or fix something. And that its presence in the Prime Timeline is not permanent.
