okay lets start this off by saying that Skolas is actually very intelligent and his plan is not yet finished. even though we kill skolas in the prison, he might still be alive. how? easy. Vex tech. lets go back to the mission where you go in the vault of glass after Skolas. You can actually hear skolas screaming that all houses will bow to the wolves in the mission, so its safe to say that he was actually present during that mission. even though we go after him, he was nowhere to be found. isnt that... odd? no, this was part of his plan. Skolas didnt only want to use the oracles, he wanted the power of time. he went deeper into the vault and stole that power. and wouldnt it be easy?, we went in there and Killed Atheon. theres nothing stopping him from breaking into the vault, even the gatekeeper did no appear because we killed it too. so lets go forward in the HoW story to the terminus. or first, the juncture. has anyone thought really deeply about these names. the juncture is a place where things join. specifically, time. then you get to the Terminus, which is literally defined as a final point in space or time; an end or extremity. now while here, Petra says something about the machines at the terminus fading in and out of our timeline and the vex signature matched the one found in the vault of glass. what signature could she be talking about? that signature is Skolas. after going deep into the vault and most likely standing where Atheon stood, Skolas stole the secrets of freedom, time and space. i know this because during the mission Variks translates exactly those words. skolas has learned the secrets of freedom, time and space. notice also how skolas doesnt come out of a vex gate or materialise infront of you when you fight him, he literally teleports there the same way the vex do. the black smoke surrounds an area and skolas just appears exactly how the Vex do. this means that he has already tapped into the vex teleporting tech and who would stop him? no one, Atheon, times conflux is not there to defend the Vex networks anymore. just because we killed him in the prison doesnt mean hes dead, he could still be alive, or even a past or future version of him is alive. how could you kill someone who has tapped into space and time? also he said he stole the gift of freedom. but free from what? hes free the same way Athon was free. the vex in the VoG were free from the rest of the Vex minds control, they had complete control in the VoG. And now skolas is free. meaning that he can tap into the Vaults networks without having to worry about gatelords controlling his movements through time and space. hes free to do and to go whre he wishes to go. not only him, but his future self too. itdoesnt sound too farfetched to say that Skolas let Skolas into Atheons chambers. think about it, if present skolas went into the vault,made his way down to the vault who would open the door for him? no one else besides future Skolas, who had already been inside the vault of glass waiting for Present skolas to arrive. only to let future skolas go through time and purposely get captured. that leaves the present skolas to do as he wishes within the vault without the queen on his trail. skolas might still be breathing. but only Time will tell. edit: if you have anything you want to add, be sure to leave your 2cents down in the comments.