So basically in this world, all kinds of dragon are immortal, so as Kai and Nya cause they're both a kind of Chinese dragon

Ok so after the crystalized, losing their power and all that stuffs (Kai and Nya still have tho cause they borned with it), they have a happy life, Jay and Nya have 2 kids, Kai and Cole dating and stuffs, Lloyd have some times with Garmadon and Wu (family bonding stuffs) and dating Rumi too, Zane and Pixal and their world.

They all happy and still dorks, until they get old, well, Cole and Jay get old. Because dragons are immortal so Nya and Kai just kinda, live, Lloyd half Oni, Garmadon just deny death and so is Wu, cause you know, Wu half dragon so his live still wayyy longer than the others, and Zane and Pixal just give them new materials to build themself and they're good.

As for that they burried their friends and family in the forest, for a peaceful resting place, and build their statue like when Zane died the first time.

The siblings would come to see their partner every day or maybe longer, the others just kinda coped with it and keep on living, but still visiting tho, just not as frequent as the siblings.

Now that after a very long time, when Lloyd kinda grow up and is trainning little ninjas now, Wu and Garmadon maybe go somewhere cause they retired, Kai and Nya just go around protecting Ninjago probably, cause everyone that close to them have now dead and they probably traveled the whole world.

And then one day, 2 kids go up the monastery, looking really really alike Cole and Jay when they all first met. (I called this their next life), And asked to be trainning cause they think ninjas are cool and they want to protect their friends and family.

And the team gonna be like:

Kai gonna be happy and very excited, he gonna go around with little Cole all day, asking if he need anything and maybe ask if they're into guys, they probably say yes or found Kai weird af cause, imagine having a dragon as your tail.

Nya will be shocked at first, and then will be like her big bro, she will be looking at little Jay like he gonna be gone the next day, and probably be protective af. YOOOO, and their kids go like, oh, OH, cause they're well educated and are very smart.

Lloyd will happily accepted them in, Zane and Pixal help in the trainning and all, like the good old days, sometimes they teased Zane cause his humour is broken, but still they get along well in the end and succesfully become master of their strenghts and stuffs. They still bad at cooking tho-

2 little guys will be confused at first cause the others (especially the siblings) are following and protecting them everywhere to keep them save. They find it annoyed at first and have a few argue but then slowly gave in cause they become closer and closer day by day, knowing they are something that are very special to the others and all, so they accepted it but still sometimes they still got annoyed. But in the end the team is back!

Anyways back to the graves that are in the forest. So one day Black and Blue follow Red (more like sneaking up on him but you got my idea) and found out the graves and Kai probably having his time cleaning them and replacing some flowers. The new Cole and Jay comeback asking master Lloyd and Zane whose graves are those, cause they always see either Kai or Nya come there, and they have some story time.

They do be a little angry knowing they just some replacements but then they understood that they're not and the team still love them as themself, not as some replacements. And they continue the trainning and all missions stuffs, like good old times, together ofcourse.

Jay later probably fall in love with Nya again and the kids will be supportive i think. But Nya probably say no cause she only love one Jay and that Jay is dead. New Jay will be upset for sometimes tho, but he later accepted and be someone who Nya can REALLY trusted.

Kai the opposite tho, he will be VERY protective and showing all stupid flirts on new Cole, but little Cole say no. Kai sad but then like Nya and Jay, they became bffs

ALRIGHT IDK WHAT I'M THINKING JUST WRITING DOWN THE PLOT FOR THAT DRAGON AU HAH-