So how about... this... and bear with me. Once everything all the metal and clock events clear up. . .
Follow it up with 3 Arcs Green Lantern: "Cosmic" "HomeWorld" and "Rising Twilight"
So the running theme has often that the Guardians of Oa aren't really all that "GOOD" in the sense that people think of good more like "good" in that they don't want to directly eat or enslave everyone. . .
Key word "Directly".
So as much as the Corps represents freedom and are heroes. The Guardians are Politicians working toward the greater good, but realize they look at all races... ALL the races in the galaxy, maybe the universe as Children... or threats. Can you imagine if your entire race... no civilization was veiwed as children and treated as such ultimately?
So they practice essentially (and I say this without judgement because I love the country I grew up in) "American Imperialism" and by that I mean they control worlds and civilizations by placing Military bases on them.
Now in this case ... it places LANTERNS on them. Literally finding an often slightly disaffected aka fearless representative of the species and Giving it the power of a god. They monitor civilizations that way and "Police" them in the way the U.N. polices nations from making nukes (allegedly).
The Cosmic series
Features whatever 2 1/2 Lanterns you want (because one is going to be in the Home world series too.) and what it explores 3 things. 1. Places that the Guardians don't have control of. Thanagarian Realms, The Reach, The relation with the new gods, The remaining Controllers, Starro, Mogul and more... 2. Threats. We're talking Ancient things the Guardians Know about and Dragon Kings
https://en.wikipedia.org/wiki/Dragon_King_Theory too. I can't just be the eternal war with Parrallax. and thats where the freiza would occur. 3. Shows the places they DO have control of and the fallout and advancement. Essentially how the
http://greenlantern.wikia.com/wiki/Book_of_Oa Rules have always been more guidelines, and there are many races all but worship the Lanterns and often embrace Oan law as their own.
It also going to show how the Guardians and a few other races are the answer to the Fermi Paradox.
Homeworld:
Follows immediately showing 1.The parallel between earth with its abundance of lanterns and other worlds that have had the same situation.
1. It is going to DIRECTLY answer the question "why so many lanterns from one planet. A planet that doesn't even have intersteller travel otherwise." The answer is because they do that to any world that "Defies Causality".
2. It's going to show how being a lantern can really evaporate your time, destroy your life, and ruin your society. All show through the eyes of a lantern on earth and "Mirroring" Lanterns on worlds gone by.
3. Its going to establish that the guardians "Prophecies" aren't "Prophecies" but that they have tech that allows them to see the future and affect it. This may already be a thing that hardcore lanterns fans know but the ring can facilitate time travel.
but you can't give them perfect future sight as a power. Regardless... there are so many lanterns on one planted because they guardians are expecting trouble on this very significant... and small civilization.
Rising Twilight
Krypton.
One word. Many Sins.
We establish the guardians tried to kill... Every. Last. Kryptonian. They had seen the future... An army of Supermen conquering every world, bending every knee, and they KEPT seeing it. No future they could come up with beat that fate. So it was decided kryptonians, and the yellow sun must never reach they judged the action based on Book of OA Law #5. Taking no action against anyone or anything until they are proven to be a threat against life and liberty.
This book further shows how on almost every other Oan Controlled world. Green Lantern is the first Alien thing they encounter and often wears the face of the world its on. It shows how on ALMOST every other world Green Lantern LITERALLY takes the Position that we ascribe to SUPERMAN.
Leader of its worlds most powerful beings. Despite what the Book of Oa suggests
They are very Dissapointed that it didn't happen on earth and are equally annoyed that Hal Jordon DIDN'T do that, especially since there are kryptonians on earth leading earth heroes. Sinestro's only crime essentially was that he went to far by putting him self "Directly" on the throne.
Lastly, its a secondary reason that they "SPAM" Earth with Green Lanterns. The guardians have a hope that one of them eventually does JUST THAT supplants the last kryptonian as its premier hero.
The Lanterns find out Everything about the Guardians and it shows how each of them react to it. How many Kryptons happened through direct or indirect action. How many civilizations reacted to the lantern but starting a superhuman arms race.
How many galactic empires stood against the guardians... and how the lanterns deal with the machinations of their masters.
...
this is literally how Military and Police have to look at their governments quite often. Thats why the cosmic series has to be so well written and inclusive. There has to be some element of "Well if not the Guardians... then The Reach... if not The Reach then The OLD ONES
http://dcau.wikia.com/wiki/Icthultu or something worse would be populating the galaxy. The lanterns have to decide.
Thats what I got. I'm spit-balling but... Thats like 3 years of story or more right there. You will need creative teams. You will need people who want to tell the story, and you need a compelling reason why they all stay lanterns at the end.
Duty. Greater Good. Love. or It is what it is... Reasons.
From there you have everything you need to keep an award winning comic going, and you get a good reason why we could have a "Earth Green Lanterns are close like the x-men" and they ARE close even when they have disputes.
Phew. Thats what I got. Thoughts?
------------------- Taken from the "How would you make green lantern Sell thread----
I wrote that but what you've written really inspires me to go back to it Punishedfire. I think the two ideas we have here would really do a lot to move the dc universe forward in a way that isn't ... "hey I know lets just turn everyone into BATMAN!".
Which worked but... it didn't make each book of the dcuniverse "More" which is what you and... dare I say "I" seem to be about. Thanks for your write up and anytime you can give my long post.