Infinity finally tracks Spirit of Fire and gets infected. Everyone on the crew gets infected except for Lasky and Thorne(they’re the best characters lately added to the series). A gravemind is created, travels to earth contaminates earth. Bornstellar and some surviving forerunners return from outside the galaxy to aid Chief, Arbiter and Ur-Didact against the flood. I feel Cortana(Although confirmed dead) will have a very big role in somehow changing Ur-Didact’s view of humanity.
I have no idea where to place Locke at the moment, he remains a big mystery.
I want to finally see some huge space battles, field battles, something on a really big galactic scale. Something epic again.