Halo 4. Questions and Impression of the end of Halo 4. Spoiler Alert!!!!!!

[smroadkill15]

I don't think the Didact died because you can hear him talking after the credits. I think they will try to find a way to bring Cortana back in Halo 5, so I wouldn't leave her out completely.

If you beat it on legendary you see a glimpse of John's face.