I can't see him not doing all that he can to keep the ship staying the course. That's why I get a little frustrated when I see a lot of skepticism thrown at the future of the Halo franchise well in advance of any of us actually tasting the fruits of their labor.
I think the story about the Spartans is cool, no doubt, but after reading Contact Harvest and the terminals, I'm really interested in seeing either a Covenant-centric book or one about the Forerunners. I wonder if they'll ever take the risk on either - since neither would necessarily need Spartan/human interaction.