@Cheese9Man Having played Halo since the beginning, I can say that the only lure there anymore is forge mode. I wouldn't even go back for a Halo battle royale at this point. That said, I'm told the reason it's doing poorly is the same set of reasons it did poorly last time around: too little too late. I myself downloaded on day one, played one match that I didn't enjoy, and then said, "Well, if I can't forge anything until 2023 then there's really no reason for me to be here." When I changed my mind a week later, I launched the game and it crashed my console (just as one of the MCC updates had done). Sorry, 343. Build a game that doesn't brick the console it was made for.
I can only tell with certainty that the age of arena shooters is over for me personally. But if you really want to know where the future is going to take the industry and the audience as a whole, I've always grudgingly said, "Look to Call of Duty." That's the game that sets the course. I'm told their BR mode is terrible, but if I know anything about CoD it's that they'll just keep doing it until they get right. And then wrong again, and then half-right. Etc. Can I picture a day when CoD no longer has team deathmatch? Nope. I can picture a future without any Halo at all, but not without TDM.