The next part of Game Informer's ongoing Halo 4 coverage just dropped with a five minute interview with Frankie about Cortana.
Main points from the interview after the jump.
- Cortana will be much more pivotal to the story than before.- Cowboy Out.
- She's expanded her natural lifespan through exposure to forerunner tech in previous games.
- She WILL decend into rampancy
- Chief will be faces with personal and practical challenges she'll never face before, Cortana is one of them.
- Cortana is was created illegally by cloning Halsey's brain.
- More human than other AI
- Through exposure to Gravemind and Forerunner archives she has become different to any other AI
- Her choice to be a naked blue lady is to force people "on to their heels" and knock them off their guard when dealing with her.
- There are canonical reasons why Chief's armour has changed. The reason for Cortana's change is because she wanted to (and because the tech allowed them to make her look better).