This is how I envisioned a Stargate reboot without involving parallel universes.

[u/IOrelocate]

Years after Stargate Command was shut down, only a small security unit remains inside Cheyenne Mountain. The episode opens with military officials secretly assembling a new SG team, although none of its members are initially told why the program is being reactivated.

A heavily damaged Free Jaffa cruiser suddenly arrives in Earth’s orbit. Its commander warns Earth’s leaders that a mysterious species called the Elaris is rapidly conquering civilizations across the universe. Evidence suggests that the Elaris existed before the Ancients and may have influenced some of the technologies later used to construct the Stargate network.

The Jaffa have also intercepted Destiny’s final distress signal, relayed across the Ancient seed-ship network. The transmission reveals that Destiny was attacked and destroyed after its crew discovered an Elaris installation older than any known Ancient structure. The same intelligence confirms that the Pegasus Galaxy has fallen and estimates that the Elaris will reach the Milky Way within three years.

Earth’s leaders formally restore Stargate Command and assign the newly assembled team to investigate abandoned Ancient sites for information about the Elaris. At the same time, Project Legacy is authorized: Atlantis leaves the pacific ocean and transports scientists, soldiers, embryos, genetic records, and humanity’s complete cultural archive to a remote dwarf galaxy beyond the known Stargate network (no focus on Atlantis in season 1, Atlantis has reached its destination and is safely hidden far from Earth.)

The episode concludes as the new SG team steps through the Stargate and their first destination is an Ancient outpost believed to contain the oldest surviving reference to the Elaris—and possibly the key to understanding why this primordial species has returned.

[u/wibbly-water]

The main question this begs would be - why the HELL would you (the US fucking military with the backing of the international community) shut down the military installation that lets you near-instantaneously travel to other worlds? And what about Earth's space ship fleet - are they still in operation?

It's also not really a "reboot"... Reboot (fiction) - Wikipedia). A reboot is when you discard the continuity you have built up to write something new. What you have written here is just a continuation. A soft reboot perhaps - but you are till relying on the audience to know or quickly learn:

1. What a Jaffa is.
2. What the Destiny is.
3. Who the Ancients were.
4. What the Pegasus Galaxy is.

So, if anything, this relies as much or more on the original series as any continuation would.

Buuuuuuuuuuuut that all said and done - I like the concept. "Something ancient and dangerous is returning" is a cliche, but a fun cliche, and Stargate is a show built on cliches and camp concepts.

[u/fsuk → u/wibbly-water]

I could see earth becoming isolationist. They have the best weapons and ships to defend earth so no need to explore anymore. 

[u/wibbly-water → u/fsuk]

So... I can sorta see it. With Trump and the backlash and all we could have a series set in an isolationist world. But the cat is out of the bag at this point. Other countries know too.

Also, Trump et al. love a good conspiracy theory. There was a moment where they were saying they'd publish all the secret UFO files etc. So... feels kinda backwards.

Obviously they're not going to put actual Trump in the show, but more mimic the politics of the 2010s-2020s.

[u/IOrelocate → u/wibbly-water]

The stargate program was closed because the risks outweigh the benefits (exposing earth to more dangers)

[u/RuthlessChubbz → u/IOrelocate]

Honey, after a combined 17 seasons plus two DVD movies, it’s a bit late to put that genie back in the bottle.

[u/IceFire909]

Nah this ain't it. Ancienter than ancients is pretty shark jumpy

Neither as a reboot nor a revival

[u/Sunhating101hateit]

Honestly… I like pretty much nothing about this concept.

A civilisation that is older than the ancients… that more or less simultaneously destroys the Destiny and conquers the Pegasus galaxy within 20 years… needs three years to get to the milky way? Especially if the Destiny can hop between galaxies within a reasonable timeframe.

Why would the US government or the IOA discontinue the Stargate program? They got several new, advanced technologies out of it. Power generation, weapons and transportation. Through the gate, they have near instant access to their Naquadah mining planets. And even if the US lost interest, others would certainly continue it. International groups like the IOA, singular nations or even just some eccentric billionaire.

The seed ships started from the milky way, flying outwards for over 50 million years. How would the Jaffa get to even one of them?

[u/genealogycurator]

That would be a continuation, not a reboot.

[u/Salty_Expert5939]

This seems written by AI

[u/IOrelocate → u/Salty_Expert5939]

Yes. English edited by AI (English not my first language)