It's taken years for follow-up with a lot of Halo media, given how big the universe has become. Remember it was five years from Ghosts of Onyx to Glasslands, and basically nearly another five years from where we mostly left that Shield world to when they're going to revisit it with Legacy of Onyx. Another eightish years for the sequel to Halo Wars. Took them twelve years to give us the payoff for stuff from CE with Silentium. Even if they're interested in following up on the Ussan Sangheili or the Stoic Prophets, etc. you've got to be ready to wait.
Oh, I know. I guess I'm not expecting a follow up novel/game/etc, but SOMETHING to reference them, even in passing, so it doesn't feel like that book exists in a vacuum.
Like how in Smoke & Shadow they mentioned the terrorist attack on Sedra (From Halo: Nightfall). You didn't need to see Nightfall for the info nugget to make sense, but having seen it, I could "visualize" the way Kip's family died, and it made it all the more impactful.
I suppose it just gives me a LoreBoner when I see stuff like that, and want more of it. Of course the downside is making the universe feel TOO SMALL when everything magically connects to one another, so like everything, there is a fine line.
Some of the lesser, background stuff, it makes sense why we don't get updates all the time, but it's weird when we get a full book that just seems to sort of exist on its own. I suppose Hunters in the Dark colors Halo Wars 2, so maybe Broken Circle will feature in Halo 6?
Ultimately I just don't want another Halo: Escalation situation, where I invest time & $$$ into something that just gets turned into something meaningless.. "THE ABSOLUTE RECORD! ALL THE FORERUNNER EVERYTHING! ALL THE.. oh, yeah that's gone."
Bleh.