I love the story, but Barry does know that some parallel earths are mostly the same. For all he would know, that Wally's life could have just closely mirrored his own on Earth 16. I know that they are the same person, but Flash shouldn't.

I love Kyle Rayner so that was a treat

You need to spellcheck the first few chapters.
Other than that it's a great story.
WallyxShayera for the win. Ahaha

I sort want to see a variation where Wally is pulled back holding a glove form someone in the YJL and then Wally's first team try to find him while the JL ponder why the flash is sulking over a glove

This was a great story but to be perfectly honest what you did with the YJ earth characters bothered me a lot. I know I know this is a fanfiction but you acted like YJ world and characters didnt matter to Wally enough. Barry and Wally's relationship was fine when they met the first time after all those years but then you suddenly said they had an huge fallout 5 years ago and in my opinion you didnt handle the whole situation properly. You said this wasnt going to be a Sptfire story which is fine but you and your characters acted like the whole relationship was nothing and one of the characters said that 'before it developed to something great it ended'? EXCUSE ME BUT WHAAAT? Either create a different back story for them and stop acting like everything happened the way happened or just admit you dont know these characters. I'm not a big Spitfire fan but you gotta admit that the realationship was serious! They stopped being heroes for each other, for their relationship. And and they meet up after 5 years and they are like 'Ohh sorry but we moved on?' Yeah right! I can say the same for the other characters. None of the reunions felt heartwarming. I wish characters had talks, hugs and everything else so that it could have been felt more real but instead everything was wrapped up way too quickly. And oh Wally just leaves? 5 years in JL world is enough to decide choose JL and leave everyone and everything from YJ world behind so quickly like that? And not even once Wally feels the emotional weight of that decision? Ha-ha. Right. Like I said great story but I dont think you handled the characters emotions properly. It was obvious you always intended Wally to end up with Shayera but I wish they stayed as friends because they had such a great relationship *sigh*

You seem to have some fun ideas and I truly love Wally centric stories!

With that being said, there seem to be some issues with diction. It is helpful to a reader to have ideas and dialogue presented in a clear and concise manner without being so direct that you're merely stating facts or losing details that are essential to creating atmosphere in the story.
I think you're on the right path with your writing but getting a beta to have an extra eye on your work before posting may help to ensure that the story stays clear and engaging.

I also realise that this story is at least 2 years old and you may have even found a beta for future work or discovered how to better balance your diction and verbiage by now. I suppose this is merely my helpful advice based on this sample of work.

Best of luck and Happy writing!

Good story.

Thank yo writing this story. It was really well planned out and I really enjoyed reading it. I have only watched young Justice, but Iwas still easily able to make sense of the story. I am so glad you finished it because in most fan fictions people don't bother to finish it which is annoying. I really loved this story.

I'm sorry you got a nasty comment. Sometimes people don't realize that they can offend you just as easily on the web as in real life. I think this story that you wrote is really good and you should keep writing. I really enjoyed reading this fanfiction! I was so sad that Wally died in Young Justice and that there was not going to be a third season, but this story is the way that it really should have ended.

Is there going to be any spitfire in here?

The plot was interesting and I found myself thinking of this occasionally but your story suffers from 2 flaws: grammar and lack of emotional depth. Some of your words are misspelled and your syntax is very wordy and can be repetitive at times. For the latter, this is even worse problem because there was so much potential for drama and humor that you never even tapped. I'll break it up for you.

1. Wally came to his decision to go back to the JL reality way too quickly. Yes he had 5 years to gain a new family and establish his place in a new world, but nostalgia for your childhood home and the love for your family friends are very powerful emotions and Wally is getting a second chance to reconnect with everyone. No way would he choose his new home over his old one so easily. After weeks or even months of careful consideration, then yes. Heck he would probably find a way to travel between dimensions willingly so he doesn't have to choose. I think he sort of did that in the comics.
2. Barry and Wally's strained relationship came out of nowhere. During their first reunion, they are totally happy with each other. Then later we find out that their relationship is strained without seeing any proof of that previously. Then we are told that Wally wants to make things up, but during the second reunion we get none of that. It came out less as drama and more as last minute planning of a plot line.
3. You forgot reverse culture shock, which is culture shock of experiencing your homeland after being away from it for so long. Wally spent 5 years as an equal to the League. Now he's back in a world where he's a subordinate and yet he takes this all on without feeling any sort of culture shock. Not only would this be great for drama but for humor. Heck could you imagine Wally interacting with the YJ version of the JL founders as if they were the JL founders themselves. That could lead to humorous awkward situations especially with YJ shayera, who's married.
4. Wally and Artemis's story felt like it wrapped up too nicely. Yes they moved on, but there should still be a feeling of sadness. Artemis may now have her feeling for Wally resurface. Maybe not, but there should be a feeling of a future lost, and I can't imagine Walky ceasing to love Artemis. Maybe he would stop loving her romantically but not all together. He would probably love her as a special friend.
5. And finally, Wally meeting the Twins was glanced over. Don't summarize their union with a couple of sentences after building up the twin's admiration for their brother for two chapters. Let us see how they interact and bond. Is Wally everything that twins hoped for and more? Now meeting them, does Wally mourn for a lost future with them (because of Bart)? This is what creates drama and builds character development.
Now the last thing is solely nitpicking. Wally and the twins are legally siblings. Wally was adopted by the twins' parents, making them legal siblings. It's just that biologically they're cousins

Is Artemis coming soon? And why does the hawkwomen know of Young Justice?

I just read chapter seven. I like the details you put in this story. You put just the right amount and you fit them nicely in with the story. Also, I liked the interaction with Artmis and Wally and I like that they both found the strength to move on and Artemis found someone. Can't wait to see the interaction between Nightwing and Flash (Wally). Haha Dick has a "Ninja butt".

I read chapter 4. Some YJ interaction with Shayera, and Barry found out that the Wally from the Justice League: Animated Series universe is really from their universe. So exciting! And I like the part about the lightning bolt scar. Artemis is in the next chapter! Can't wait!

I've only read to chapter 4, but so far this is really good! There are some parts that you might want to go back and re write as they were a but confusing, but other than that it was very well written. Keep up the good work and keep writing! :)