My perfect ending for John..... Halo 6 ends with John getting a serious injury that leaves him with no choice but to retire from the physical portion of fighting(at the time we are to believe he is dead). We get acclimated with him in the future titles. Helmet-less John helps us along our missions as a ship commander or some sort of leader. We fight as whoever 343 deems fit after the Master Chief era. Come a couple games after Halo 6 and the last fighting we do with the chief we get ourselves in a predicament. As our current Spartan(we'll say Spartan 118 for convenience). We're battling the enemy and all of a sudden the battle makes it's way to the Infinity. Master Chief is aboard and to this point hasn't been a playable part of the story since Halo 6. As Spartan 118 you're fighting off this invasion against some serious bad guy. This is the bad guy that put chief out of commission in Halo 6. The enemy is fighting his way to an artifact(maybe the Janus Key) on the Infinity. The enemy is strong and basically takes out the entire Infinity. He even kills off the new main character(or so we think). He has missed one main man though. That man is of course the holder of the artifact. That man is Spartan 117. While it is highly suggested that he doesn't take part in combat at this point in time he has no choice. After the enemy rips through the Infinity in searh for the chief and the key mostly everyone dies off and we get a cutscene..... *cutscene* The enemy searching far and wide on the Infinity. The enemy has Prometheans with him and he's relentless in making sure that they find the artifact. The get to a room and notice a man that is dressed in what looks like Master Chiefs armor. That's because it is master chiefs armor and it certainly is master chief. He's back to fight his last fight. If the enemy get's a hold of the artifact humanity is screwed. Chief and the enemy share words. The enemy seems quite shocked that John is still alive. After some words are shared and the "no you can't have the artifact" goes down the fighting begins. Like I said before the Infinity was literally being ripped apart so at this point their isn't much left of it. The fight takes place all over the Infinity. I'm not sure exactly how the fight would be done but it would be epic. The fight would eventually lead us to a situation where the chief stands zero chance. He's absolutely going to lose the artifact and humanity is going to be screwed. *cutscene* Just like bad guys always do instead of grabbing the artifact and leaving he's going to sit around and tell chief how he lacks skills and is nothing but a waste. This is going to give enough time for Spartan 118 to enter the fray shooting the enemy in the face with a sniper round. When the artifact drops chief is going to reach out and grab it. John is going to do the only thing he can do and set the ship into it's self destruct phase as it's now crawling with Prometheans. He's throws the key to 118 as a signal of the passing of the torch and tells him to get out of here. In one beautiful explosion the Chief is gone, most of the Spartan II's are gone, and we have a new Hero. I know, I'm not that great of a writer. I'm glad if you stuck around for the whole thing whether you enjoyed it or not.