What do you think is gonna happen now?
Halo Wars 2 is the next Halo game.
It will most likley have an influence on every following Halo.
I’m expecting Halo Wars 2 to be mostly Spirit of Fire vs Banished on the Ark, and either at the end of this game, or the beginning of Halo 6, the Infinity will Arrive, likely along with the Arbiter’s remaining forces, and after some time on the Ark, regrouping and intelligence gathering, they’ll take off to Maethrillian to cut Cortana off from the source of her power, the Domain.
In terms of a Chief campaign, I think we will see him meet his demise. I won’t like that but at this point it’s bound to happen.