xXx Failure xXx: fiery grave:That makes so little sense it hurts................
he is frozen till another time, but how does legends bust that idea? and legends is considered low cannon because half the stuff from that is untrue
But I did have another theory for Cortana avoiding rampancy, since she can create an infinite number of clones of her self couldn't she possibly create a clone force it into rampancy and then when it is rampant instead of destroying it let it continue and if she had multiple clones go rampant and absorbed them back into her wouldn't she be able massively progress through rampancy in a short time, and since the the gravemind has the ability to cause an A.I. to go rampant (or corrupt it) when she kept making the clones to distract the gravemind and he kept corrupting them could she have gone rampant and become stable from doing this?
This is impossible: She hasn't got the appropriate tools or physical form to clone herself, and further mreo she cound't become rampant unless she was corupted by a third-world source, for example the Flood Grave-mind, as in Halo 3 canon, UNSC 'smart' AI's will eventually burn themselves away after eight to nine years: They do not turn rampant after the said duration of time, they simply die away, and even if she was to be come rampant, the most she could do is try and shut-down the Chiefs cryo-mechanism, and even if she did, he would simply wake and upon making the realization that Cortana is rampant, he would discard her, and then resume cryo.
she can clone her self, its an ability that she picked up from absorbing the covenant A.I. It was the only way she was able to fight off the Gravemind so easily. She also gain the ability to translate any covenant language from this.
Smart A.I.'s after approximately 7 years of activation go rampant, read this (I know its a wiki but its accurate) http://halo.wikia.com/wiki/Rampancy
Dumb A.I.'s do not have this because they are very limited and created using programing code
also if chief were to have discard Cortana he wouldn't be able to go back into cryo sleep, some one (Or a A.I.) would have to activate the chamber, he cannot activate the chamber and be in it at the some time