They definitely need to save Cortana in Infinite imo. She is an essential part of the franchise imo, the voice the players hear most of the time since Chief is a largely silent character. Without her there to push the narrative forward, they pretty much have to always rely on team missions in the future, they can never do solo Chief missions again unless they make Chief talk alot more or give him another AI, and I'm not sure that either of those options are good ideas.
I'm fine with that, as long as they cure her rampancy so we don't have to deal with another game trying to save Cortana.
Though I was interested in seeing Chief's emotional state after losing Cortana, shame we didn't see that at all in Halo 5 and they instantly brought her back.
They'd likely have to bring Mendicant Bias in, he's one of few AIs that have overcame rampancy. Though I think Guilty Spark has also overcame his rampancy and he's closer to Cortana in that, they're both based on humans, Cortana being a clone of Halsey's brain and Guilty Spark straight up being someones consciousness and memories transferred into a robot.Last edited by Ryuu96 - on 19 February 2020