This is just what I believe is happening. The effect of this is by the end of the generation, the Xbox brand equity is going to be in the toilet. The value of the Xbox brand to consumers is going to be lower than its ever been, and the value of Xbox hardware to Microsoft is going to be lower than the amount of hours spent trying to play Uncharted 4 on Xbox One. I think by the end of this generation, we're going to fully realize that the Xbox Two requires Sony to make PS3-era level of mistakes in order to have a shot. As always, anything can happen and I could be completely wrong in everything, but I have a feeling that the more deliberately convoluted press releases we get from Microsoft, the more we'll realize how badly Microsoft handled the Xbox brand this generation.
i don't really have a dog in the microsoft/sony race. who does better here is about as interesting as the presidential campaign between jack johnson and john jackson. that said, i love speculating, and i think the idea that microsoft is done and there's no reversing things as far as next gen is concerned doesn't take into account a lot of the stuff that goes on behind the scenes. the direction behind xbox changed wildly from 2005 to 2015, and can be broken down into a few key areas:
(now before 2005, i think microsoft was largely directionless. they were basically throwing shit at the wall and seeing what stuck, making games with anyone as long as it could be exclusive. the best thing they did in this era was buy bungie and get xbox live up and running)
2005-mid 2010: the console for gamers. and by gamers, i really mean the 18-34 year old male playing online shooters. this was microsoft really leveraging xbox live as a way to create a community. and hell, it worked. they managed to ship nearly 40 million systems by the end of 2009, massively up over the predecessor which had sold 24 million in the same time, while also selling far more software. it was also the go-to place if you had a multiplayer game. the 360 may have been outclassed by the ps3, but most of the time, multiplayer games looked or ran better on the 360. the moves microsoft made here included promoting indie games like braid and limbo, and making xbox live the centerpiece of the console (remember that e3 when you could download some demos of games on the show floor? crazy right?)
mid 2010-mid 2013: the console for everyone. bungie left to do their own thing and no one ever heard from them ever again. this is when kinect took off and microsoft started to coast a little on the success of it afterwards. late 2010 and all of 2011 were the highest points of the 360, and from this it's hard not to see why they would have thought they'd struck gold. while first-party games and franchises were no longer new and exciting, and usually made from companies unaffiliated with the property originally, the 360 had become the place for family games (not just kinect), and it was still the go-to console for multiplatform titles. it's this version of the 360 that led the platform to become the best-selling console of the 7th generation in the united states.
mid 2013-late 2014: the console for no one. the reveal of the xbox one was disastrous. e3 2013 was actually fine, but it was completely overshadowed by the may 2013 reveal to the point where people mistaken announcements from the reveal as showing up in the e3 show, especially in the context of sony's show later that day. but basically the direction of the thing was 'kinect is popular so we'll do that... and because we have the system for everyone, we'll put in other non-gaming features like we've always wanted. we've conquered the living room, people!' with a dash of 'oh and let's not let anyone fucking pirate anything.' if i have to pick a period of the xbox's history that was even more mired in 'please the board room guys' than the original period where microsoft was just trying to get their foot in the door, it has to be this one. microsoft wanted something that had a broad reach with its accessibility and features, but they also wanted a high end machine. the result was a system that could play multiplatform games, but with a price point that was prohibitively expensive to the main fanbase they wanted. even if they did secure the espn-loving crowd and families (probably with a $300 consoles and something marketed more explicitly towards them), they wouldn't have gotten around the always-online thing.
late 2014-present: the console for gamers. microsoft spent most of 2014 and all of 2013 undoing the mistakes of the may reveal. but they couldn't drop kinect and as a result, couldn't drop the price. they couldn't make the system more powerful either. however, they were able to eventually drop the price rather significantly in late 2014, and kept going into 2015 to where it was selling at a lower price than the ps4 (until the two were finally on equal footing late in the year). online-only is now a bad dream, xbox tv is dead, kinect is gone, and the family push is gone with it (although it's the second best performing platform for family games of the 8th gen systems a lot of the times - probably a holdover from the 360 userbase). phil spencer seems to be doing and saying all the right things too. backwards compatibility with the previous generation isn't a major system-selling thing, but it's definitely a show of good will. rare replay and sea of thieves also shows microsoft acknowledging the company's legacy and letting them stretch their legs a little with something new that looks like something they wanted to do. there's overall a bigger push to make microsoft's first-party stuff mean something.
what i want to say is, direction and passion matters. i don't know if you can put too much stock into what happened in 2015 either since it was most likely holdover from stuff decided when don mattrick was in charge. i have to assume for instance, that the halo tv show was supposed to happen with halo 5 (sony managed to get the powers tv show out about one year after bendis started talking about it, and a few days after he stopped talking about it). a lot of other first-party games were probably made in times less friendly to developers. i don't think it's necessarily the best indication of how things will happen moving forward.
the last thing i want to touch upon is how we don't even know the plan for the ninth generation. personally? i'm thinking that microsoft might join nintendo in the os game and start applying xbox to more than one kind of device, while marketing one very specific gamer device to start with. if xbox can become a platform that is played on pc the same way steam is, as well as being a dedicated hardware that is purchased in store, that might be the sort of thing that could blindside the competition in the next generation and reach more people.